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Abstract

Virtual reality (VR) is predicted to create a paradigm shift in education and training, but there is little empirical evidence of its educational value. The main objectives of this study were to determine the consequences of adding immersive VR to virtual learning simulations, and to investigate whether the principles of multimedia learning generalize to immersive VR. Furthermore, electroencephalogram (EEG) was used to obtain a direct measure of cognitive processing during learning. A sample of 52 university students participated in a 2 x 2 experimental cross-panel design wherein students learned from a science simulation via a desktop display (PC) or a head-mounted display (VR); and the simulations contained on-screen text or on-screen text with narration. Across both text versions, students reported being more present in the VR condition (d = 1.30); but they learned less (d = 0.80), and had significantly higher cognitive load based on the EEG measure (d = 0.59). In spite of its motivating properties (as reflected in presence ratings), learning science in VR may overload and distract the learner (as reflected in EEG measures of cognitive load), resulting in less opportunity to build learning outcomes (as reflected in poorer learning outcome test performance).
LEARNING IN VIRTUAL REALITY 1
Adding Immersive Virtual Reality to a Science Lab Simulation Causes More Presence
But Less Learning
Guido Makransky1, Thomas S. Terkildsen1, and Richard E. Mayer2
1 Department of Psychology, University of Copenhagen, Copenhagen, Denmark
2Psychological and Brain Sciences, University of California Santa Barbara, CA
Corresponding Author: Guido Makransky, University of Copenhagen
Address: Øster Farimagsgade 2 -1353 Copenhagen K, Denmark
Abstract
LEARNING IN VIRTUAL REALITY 2
Virtual reality (VR) is predicted to create a paradigm shift in education and training, but
there is little empirical evidence of its educational value. The main objectives of this study
were to determine the consequences of adding immersive VR to virtual learning
simulations, and to investigate whether the principles of multimedia learning generalize to
immersive VR. Furthermore, electroencephalogram (EEG) was used to obtain a direct
measure of cognitive processing during learning. A sample of 52 university students
participated in a 2 x 2 experimental cross-panel design wherein students learned from a
science simulation via a desktop display (PC) or a head-mounted display (VR); and the
simulations contained on-screen text or on-screen text with narration. Across both text
versions, students reported being more present in the VR condition (d = 1.30); but they
learned less (d = 0.80), and had significantly higher cognitive load based on the EEG
measure (d = 0.59). In spite of its motivating properties (as reflected in presence ratings),
learning science in VR may overload and distract the learner (as reflected in EEG
measures of cognitive load), resulting in less opportunity to build learning outcomes (as
reflected in poorer learning outcome test performance).
Key words: virtual reality, EEG, cognitive load, simulation, presence, redundancy
principle
LEARNING IN VIRTUAL REALITY 3
1. Introduction
1.1 Objective and Rationale
Recently, there has been a surge in attention and hype surrounding immersive
Virtual Reality (VR), and how it is predicted to create a paradigm shift in several fields
including entertainment, gaming, and education (e.g., Belini et al., 2016; Blascovich &
Bailenson, 2011; Greenlight & Roadtovr, 2016). This excitement is partly driven by high-
volume business analyses, popular reports, and heavy investment by some of the biggest
technology companies like Google, Apple, Facebook, Microsoft, and Samsung. As a
consequence, many companies and educational institutions are investing significant
resources in adapting standard educational tools that have traditionally been used on a
desktop computer to immersive VR involving head-mounted displays, with the
expectation that a higher level of immersion will increase student motivation and learning
(Bodekaer, 2016). With little existing research evidence available to either support or
contradict this assumption, instructional design decisions are often made based on
practical or economic considerations rather than evidence-based argumets because there is
limited research available in this rapidly developing field.
The main objective of this study is to assess the influence of the role of immersive
technologies on learning outcomes (i.e. how media influences learning). In other words we
explore how porting a learning simulation designed for a low-immersive environment to a
highly-immersive environment influences subjective and objective learning outcomes. A
secondary objective is to investigate whether the principles of multimedia learning
(Mayer, 2009) generalize to immersive VR. These research questions are highly relevant
because most large scale VR learning implementations are currently taking a technology-
rather than a learner-centered approach which has historically lead to limited impact of
technology in educational practice (Cuban, 1986). A final objective is to use cognitive
LEARNING IN VIRTUAL REALITY 4
neuroscience methodologies to obtain a direct measure of cognitive processing during
learning. This is in line with a report by the National Research Council that highlights
“the need to examine the mediating processes within the individual that influence science
learning with simulations and games with the aim to illuminate what happens within the
individual—both emotionally and cognitively—that leads to learning and what design
features appear to activate these responses” (NRC, 2011 p. 122). Many instructional
design studies investigate posttest results, or indirectly assess the cognitive processing
during learning through self-report measures. In line with recent research that has used
cognitive neuroscience to measure overload (e.g., Antonenko et al., 2010; Gerjets et al.,
2014; Mills et al., 2017) we investigate cognitive processing during learning directly with
electroencephalogram (EEG) to get a better understanding of how immersion affects the
learning process in this study.
A distinction between low immersion (also referred to as desktop VR) and high
immersion VR (generally involving a head-mounted display) is typically made in the
literature (Lee & Wong, 2014; Limnio, Roberts & Papadopoulos, 2007). In desktop VR,
the virtual reality environment (VRE) is displayed on a conventional PC monitor with
sound coming through speakers and the interaction is controlled through a regular
computer mouse. This is the type of VR that is generally referenced in literature reviews
on VR, and is regarded as a low-immersion medium (e.g., Merchant, Goetz, Cifuentes,
Kenney-Kennicutt, & Davis, 2014; Moreno & Mayer, 2002; NRC, 2011). The second
type of VR is often refered to as high-immersion VR, and is characterised by using a head-
mounted-display in which a high graphical fidelity screen is mounted in front of one's eyes
with separate lenses for each eye and with sound delivered through earphones. The
interaction in this type of VR is controlled through head-motion tracking in conjunction
with a computer system, so when users move their heads to look around they
LEARNING IN VIRTUAL REALITY 5
correspondingly move their field of view inside of the virtual 360-degree environment
(Moreno & Mayer, 2002). The present study examines the effects of moving a science
simulation from learning in a low-immersion VR (also referred to as PC condition in this
study) environment to a high-immersion VR environment (also referred to as VR
condition in this study).
1.2 Virtual Learning Simulations
The use of science labs has a long history in science education dating back
decades, so it is reasonable that the advances in computer-based learning would include
the development of computer-based simulations of science labs and learning experiences
(Honey & Hilton, 2011; Klopfer, 2008; Slotta & Linn, 2009). Computer-based
simulations for science learning can be used to promote procedural knowledge for carrying
out lab procedures as well as conceptual knowledge for understanding and explaining the
demonstration, but research on the instructional effectiveness of simulated science
evironments is needed (Honey & Hilton, 2011).
An important issue for the broader field of learning and instruction concerns
whether the motivational benefits of simulated labs can be enhanced with virtual reality in
a way that promotes learning. In particular, a field where the value of immersive VR may
be specifically relevant is in designing virtual learning simulations. Virtual learning
simulations are designed to replace or amplify real-world learning environments by
allowing users to manipulate objects and parameters in a virtual environment. This has the
advantage of allowing students to observe otherwise unobservable phenomena, reduce the
time demand of experiments, and provide adaptive guidance in a virtual world that
provides a high sense of physical, environmental, and social presence (de Jong et al., 2013;
de Jong, 2017 , Makransky, Lilleholt, & Aaby, 2017). Some empirical studies and meta-
analyses have shown that low-immersion simulations result in better cogntitive outcomes
LEARNING IN VIRTUAL REALITY 6
and attitudes toward learning than more traditional teaching methods (e.g., Bayraktar,
2001; Bonde et al., 2014; Clark et al. 2016; Merchant et al., 2014; Rutten, van Jooingen, &
van der Veen, 2012; Sitzmann, 2011; Vogel et al., 2006). There is also research
supporting the motivational value of low-immersion VR simulations (e.g., Makransky,
Thisgaard, & Gadegaard, 2016; Makransky, Bonde, et al., 2016; Thisgaard & Makransky,
2017).
There is less research investigating whether high-immersion VR technology
increases cognitive and motivational outcomes as compared to low-immersion VR. One
study by Moreno and Mayer (2002) investigated the role of method and media by
introducing multimedia learning material based on different learning principles from the
cognitive theory of multimedia learning (CTML; Mayer, 2014) in desktop VR, immersive
VR while sitting, and immersive VR while walking. They found a method effect based on
the redundancy principle of multimedia learning (Mayer, 2009), but the media did not
affect performance on measures of retention, transfer, or program ratings. Similarly,
Richards and Taylor (2015) compared the knowledge of students after a traditional
classroom lecture about a biological principle known as Marginal Value Theorem with
their knowledge after they were exposed to simulations of two- and three- dimensional
models. They found that the two-dimensional model worked better than the three-
dimensional model, presumably due to additional cognitive load imposed by the three-
dimensional model. In contrast, other studies have found positive results favoring high-
immersion VRE’s (e.g., Alhalabi, 2016; Passig et al., 2016; Webster, 2016). Therefore,
there is limited and inconclusive research investigating whether the added immersion
offered by high-immersion VREs leads to higher levels of presence, and ultimately better
learning and transfer outcomes; and little is known about how different levels of
immersion affect cognitive load and ultimately learning and transfer oucomes. This type of
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research is specifically relevant for highly realistic educational material such as virtual
learning simulations.
1.3 Theoretical Background
What is the theoretical basis for predicting that more highly immersive VREs
would lead to better or worse learning outcomes? Similar to cognitive load theory (CLT,
Sweller, Ayres, & Kalyuga, 2011), the CTML (Mayer, 2009) suggests that there are three
types of cognitive processing that can occur during multimedia instruction: extraneous
processing--cognitive processing that does not support the instructional goal, caused by
poor instructional design or distractions during learning; essential processing--cognitive
processing required to mentally represent the essential material, caused by the complexity
of the material for the learner; and generative processing--cognitive processing aimed at
making sense of the material, caused by the learner's motivation to exert effort. Given that
processing capacity is limited, if a learner engages is excessive amounts of extraneous
processing, there will not be sufficient capacity available for essential and generative
processing (which cause meaningful learning outcomes). Thus one goal of instructional
design is to reduce extraneous processing, because to the extent that the perceptual realism
of high immersion causes extraneous processing, such environments will diminish
learning. On the other hand another goal of instructional design is to foster generative
processing, because to the extent that highly immersive environments motivate learners to
process the material more deeply, they will increase learning.
From one perspective the theories suggest that immersive VREs could foster
generative processing by providing a more realistic experience which would result in a
higher sense of presence (Slater & Wilbur, 1997). This would cause the learner to put in
more effort and to actively engage in cognitive processing in order to construct a coherent
mental representation of the material and the experience, which would lead to learning
LEARNING IN VIRTUAL REALITY 8
outcomes that are better able to support problem-solving transfer. This expectation is
consistent with interest theories of learning such as initially offered by Dewey (1913), who
believed that students learn through practical experience in ecological situations and tasks
by actively interacting with the environment. The expectation the increased immersion
can lead to learning may be specifically relevant for VR because the sense of presence
experienced by the user can have a very powerful emotional impact (Milk, 2015). Models
by Salzman, et al. (1999) and Lee et al. (2010) also suggest that immersive environments
create a stronger sense of presence, which leads to higher engagement and motivation and
a deeper cogntive processing of educational material. Therefore, based on these
motivational arguments, it would be expected that immersive VR would provide a higher
level of presence and generative cognitive processing which should lead to higher levels of
learning and transfer.
An alternative line of reasoning which is also based on the CTML and CLT
suggests that any stimuli not absolutely necessary to understanding what needs to be
learned is redundant and may decrease learning. These theories suggest that any material
that is not related to the instructional goal should be eliminated in order to eliminate
extraneous processing (Moreno & Mayer, 2002). Therefore, immersive VR could simply
be triggering situational interest through the process of taking a boring topic and spicing it
up in an attempt to make it interesting. This is just the first step in promoting academic
achievement, and by itself may not foster deep learning. Situational interest can but does
not always develop into later phases involving individual interest development which have
been found to promote positive long term educational outcomes (Renninger & Hidi, 2016).
Alternatively, added immersion could be categorized as a seductive detail (i.e., interesting
but irrelevant material) which could distract students by priming the wrong schema (e.g.,
Harp & Mayer, 1997). Immersive environments that offer a high level of presence can
LEARNING IN VIRTUAL REALITY 9
interfere with reflection during learning (Norman, 1993), because these seductive details
create extraneous processing that can distract the learner's process of building a cause-and-
effect schema based on the material.
Van der Heijden (2004) provides a complementary perspective on why highly
immersive environments might not result in higher learning and transfer outcomes. This
theory proposes that information systems can be perceived as either hedonic or utilitarian
(Van Der Heijden, 2004). While utilitarian systems provide instrumental value (e.g.,
productivity and increased task or learning performance), hedonic systems provide self-
fulfilling value (e.g., fun or pleasurable experiences; Van Der Heijden, 2004). The
distinction between utilitarian and hedonic systems is not always clear (Van Der Heijden,
2004), which can lead students who use immersive VREs to treat them as hedonic
systems. This could lead them to disregard the instrumental value and concentrate on the
entertainment value of the system, resulting in them focusing their cognitive effort on
irelevant material that is not part of the instructional goal of the lesson. Therefore, these
theoretical perspectives suggest that the the increased immersion in VREs would lead to
higher levels of extaneous cognitive load and lower learning and transfer. They also
suggest that directly and simply porting a simulation designed for desktop environments to
a VRE could in itself either hinder or facilitate learning.
1.4 Does the Level of Immersion Impact the Redundancy Principle?
A secondary issue related to the level of immersion in VREs is whether multimedia
design principles apply in low and high immersion VR environments. That is, does media
affect method, or do the learning principles that were originally developed for less
immersive multimedia environments generalize to highly immerse interactive
environments like VR? Investigating whether media affects method is important because
there is limited research examining learning principles within simulations and VR, and
LEARNING IN VIRTUAL REALITY 10
thus few evidence based guidelines for deloping learning content in highly immersive
environments. The redundancy principle has previously been investigated in VR contexts
(Moreno & Mayer, 2007). The redundancy principle is that people learn better from
graphics or illustrations and narration than from graphics, narration, and redundant on-
screen text (Mayer, 2009). Adding a redundant form of the verbal material can create
extraneous overload, which has a negative effect on learning. This effect occurs when
identical information is presented to learners in two or more different forms or media
simultaneously; or when redundant material in general is presented and selected for
processing (Kalyuga & Sweller, 2014). For instance, having identical and concurrent
written and spoken text (through narration) was demonstrated to be redundant, and was
shown to interfere with learning (Kalyuga et al., 1999). Even if the identical information
is presented concurrently across both modalities, it will still cause a redundancy effect
because it then requires unnecessary co-referencing between the two channels; and if it’s a
question of identical on-screen text and narrated text, then they are both processed in the
phonological channel even though they are presented across different sensory modalities.
The redundancy principle is consistent with the interference theory, which dates
back to Dewey’s warning (1913) against regarding extra embellishments that can be added
to an otherwise boring lesson to try to motivate the students as increasing their interest
level, since this extra material will need to be processed, which will in turn interfere with
essential processing. This is in contrast to general arousal theory which advocates adding
entertaining additions to make learning more interesting and enjoyable, resulting in higher
levels of attention (Moreno & Mayer, 2002, Mayer et al., 2001). Moreno and Mayer
(2000) found that adding extraneous music or sounds to a desktop VR system hurts
students’ understanding of a multimedia explanation. They argue that this shows that
adding what they refer to as “bells and whistles” can hurt the sense-making process in the
LEARNING IN VIRTUAL REALITY 11
same way as redundant on-screen text can (Mayer & Moreno, 2000). Based on this, it is
possible that the redundancy principle from the CTML applies differently across different
media, such that the redundancy principle might apply differently with immersive vs. low-
immersive VR.
1.5 Main Research Questions and Predictions
In the current study we investigate two main research questions. The first
investigates whether a higher level of immersion in the VR learning simulations leads to
higher levels of student learning, self-report ratings, and brain-based measures of overload.
If increased immersion serves to increase extraneous processing, we predict that it will
lead to less learning as measured by tests of learning outcome and more overload as
measured by EEG. If increased immersion serves to foster generative processing, we
predict that it will lead to more learning as measured by tests of learning outcome and
appropriate levels of brain activity as measured by EEG.
The second research question is to determine if the redundancy principle of
multimedia learning is present in low and high-immersion VREs. Here we investigate the
consequences of adding narration to a science lab simulation that presents words as printed
text, particularly on the same outcomes of self-report ratings, student learning, and brain-
based measures of overload. If the redundancy principle applies, we predict that students
will learn better when the simulation includes text only rather than text and concurrent
narration in the PC and VR conditions.
2. Method
2.1 Participants and design
The participants were 52 (22 males and 30 females) students from a large
European university with ages ranging from 19 to 42 (M = 23.8 years, SD = 4.5). The
experiment employed a 2 x 2 mixed design, in which participants learned from two
LEARNING IN VIRTUAL REALITY 12
simulation lessons. The first factor was a between subjects factor, in which 28 participants
were randomly assigned to receive two versions of a simulation lesson that had on-screen
text (T condition); and 24 participants were randomly assigned to receive two versions of a
simulation that had both text and corresponding narration (T+N condition). The second
factor was a within subjects factor wherein the students were administered the head-
mounted display VR version of the simulation (immersive VR condition) followed by the
desktop VR version of the simulation (PC condition), or vice versa. The order of the two
versions of the simulation was counterbalanced, with half the participants in each group
receiving the immersive VR condition first, and half receiving the PC condition first.
2.2 Materials
The materials used in the study included four different versions of a virtual
laboratory simulation, participant questionnaire, knowledge test, transfer test, and self-
report survey designed to measure presence, learning beliefs, and satisfaction. All
versions of the simulation were in English, but the surveys and posttests were in Danish.
2.2.1 Virtual lab simulation. The virtual simulation used in this experiment was on the
topic of mammalian transient protein expression and was developed by the simulation
development company, Labster. It was designed to facilitate learning within the field of
biology at a university level by allowing the user to virtually work through the procedures
in a lab by using and interacting with the relevant lab equipment and by teaching the
essential content through an inquiry-based learning approach (Bonde et al., 2014;
Makransky, Bonde et al., 2016). The main learning goal for the simulation is to develop
an understanding of mammalian transient protein expression. In the simulation the student
experiences using techniques such as cell culturing, cell transfection, and protein
expression.
LEARNING IN VIRTUAL REALITY 13
Labster supplied four versions of this simulation with identical instructional design
and method for each version: PC with text, PC with text and narration, immersive VR with
text, and immersive VR with text and narration. The PC versions were displayed on a
desktop computer screen as shown in the top of Figure 1, whereas the immersive VR
versions were displayed using a head-mounted display that allow the students to move
their heads and see around the virtual laboratory environment as shown in the bottom of
Figure 1. The text versions presented words as onscreen printed text, whereas the text and
narration versions presented words as onscreen printed text and simultaneous narration
using a voice to read the text aloud.
In every version of the simulation the virtual lesson starts off with the learner being
presented with a brief introduction to their primary in-game tool “The lab pad”. The lab
pad is a tablet that is used to provide written information and illustrations and is also the
display medium for the multiple-choice questions that the learner is required to answer
correctly in order to progress (see panels A in Figure 2). After this brief tutorial, the
learner is introduced to the virtual agent Marie. Marie serves as an AI instructor, who
guides the learner through the essential material, such as lab procedures and lab
equipment. She also functions as the source of both the verbal narration and the on-screen
text, depending on which version of the simulation is being presented (see panel A in
Figure 3). Generally, the simulation consists of four different kinds of tasks: (1) receiving
information (see panel A in Figure 3 for an example), (2) answering multiple-choice
questions (see panels A in Figure 2 for an example), (3) getting feedback, and (4) doing
interactive lab procedures such as mixing specific compounds with a serological pipette
and discarding the used pipette tip after use (see panels B in Figures 2 and 3).
2.2.2 Tests. Two multiple-choice tests were developed for evaluating the participants’
learning outcomes – a knowledge test and a transfer test. A group of subject matter
LEARNING IN VIRTUAL REALITY 14
experts, including two scientists who had developed the virtual simulation from Labster,
two psychologists, and a psychometrician, developed these questions. The knowledge test
consisted of 10 multiple-choice questions designed to assess conceptual and procedural
knowledge of essential material presented in the simulation (e.g., How should you use
your OptiPro medium for complex formation, when both DNA and ExpifacterminCHO
reagent is diluted? A) Heated to room temperature; B) Heated to 56 degrees Celsius; C)
Heated to 37 degrees Celsius; D) Cold, taken from storage at 4 degrees Celsius). The
transfer test consisted of 10 multiple-choice questions designed to assess the participants’
ability to apply what they had learned to new situations (e.g., A delivery company is
delivering frozen cells to you, but you have a meeting with your boss at the time of
delivery. What is your best chance to ensure the cell’s survival? A) Ask your boss to wait
20 min. Thaw the cells and put them in liquid nitrogen; B) Ask the delivery company to
leave the cells at room temperature. This is the best temperature for thawing frozen cells,
and they can be stored later; C) Ask the delivery company to put them in a water bath at 37
degrees Celsius that you’ve prepared. The cells can survive until you are back; D) Ask the
delivery company to put them in a water bath at 56 degrees Celsius that you’ve prepared.
This is the optimal temperature for thawing frozen cells). The questions required that
students had a deep knowledge of the content and that they could apply that knowledge to
a realistic context. Students received one point for each correct answer and 0 points for
selecting an incorrect answer. The posttests were delivered on a computer.
2.2.3 Participant questionnaire. Information on participants’ age, gender, and major were
collected through iMotions software along with the other measures used in the study
(iMotions, 2016).
2.2.4 Survey. The self-report survey asked participants to rate their level of presence,
learning beliefs, and satisfaction. These constructs have previously been used as
LEARNING IN VIRTUAL REALITY 15
dependent variables in VR research (e.g., Moreno & Mayer, 2007). Presence was
measured with 10 items adapted from Schubert, Friedmann, and Regenbrecht (2001; e.g.,
"The virtual world seemed real to me"). Learning beliefs was measured with eight items
adapted from Lee, Wong and Fung (2010; e.g., "I gained a good understanding of the basic
concepts of the materials"). Satisfaction was measured with seven items adapted from
Lee, Wong, and Fung (2010; e.g., "I was satisfied with this type of virtual
reality/computer-based learning experience"). All of these used a five-point Likert scale
ranging from (1) strongly disagree to (5) strongly agree.
2.2.5 Apparatus. The PC condition version of the simulation was administered on a high-
end laptop computer and presented to the participants on an external 23-inch computer
monitor. A standard wireless mouse was used by the participants to control input in the
PC condition. The participants used this mouse to both navigate from the different static
points of view and to select answers to multiple-choice questions. In general, the mouse
functioned as a way to select which object the participant wanted to interact with through
cursor movement and left-clicks.
In the immersive VR condition the simulation was administered using a Samsung
Galaxy S6 phone, and stereoscopically displayed through a Samsung GearVR head-
mounted display (HMD). This condition requires the participants to use the touch pad on
the right side of the HMD to emulate the left-click function of a wireless mouse in order to
select which objects to interact with. In this condition, however, head movement is used to
move the participant’s field of view and the centered dot-cursor around the dynamic 360-
degree VRE. All versions included a visible pedagogical agent, named Marie, who did not
speak in the T version and who narrated the text in the T+N version.
2.2.6 Measurement of cognitive load with EEG. An electroencephalogram (EEG) was
chosen to assess students’ workload brain activity while using the different versions of the
LEARNING IN VIRTUAL REALITY 16
simulation. There is some evidence from previous studies to suggest that EEG has
potential as a valid and objective measure of mental workload (e.g., Sterman & Mann,
1995; Gerjets et al., 2014). In the present study, EEG data was collected using an
Advanced Brain Monitoring (ABM) X-10, wireless 9-channel EEG system running at
256hz. The X-10 records data in real-time from nine sensors that are positioned in
accordance with the International 10-20 system (as shown in Figure 4), along with two
reference signal sensors that are attached to the mastoid bone behind each ear (ABM,
2016).
The 256 EEG signals per second were processed and decontaminated for excessive
muscular activity, fast and slow eye blinks, and excursions due to movement artifacts by
ABM’s proprietary software in order to produce classifications of cognitive load in epochs
of one second (Berka et al., 2004). The workload classifier was developed by Berka et al.
(2007) using a linear DFA with two classes, low and high mental workload. Absolute and
relative power spectra variables were derived using stepwise regression from channels C3-
C4, Cz-PO, F3-Cz, Fz-C3, and Fz-PO. The workload metric computation is based on 30
distinct variables across all frequency bands within 1-40 Hz (an overview of the variables
used for the calculation of workload can be found in Berka et al., 2007, Table 1, p.235).
The classifier was evaluated and trained based on data obtained from testing different
combinations of low and high difficulty levels of mental arithmetic, grid location, trail
making, and digit-span tasks (forward and backwards; Berka et al., 2007). These tasks are
often used in standardized batteries for neuropsychological assessment of working
memory (such as the Working Memory Index portion of WISC-IV, which includes
forward and backwards digit-span, trail making and mental arithmetic; Colliflower, 2013)
and as such, the workload metric is developed specifically to be sensitive to executive
processes involving working memory. As a result, the metric value increases when
LEARNING IN VIRTUAL REALITY 17
working memory load and task demands increases, and decreases when resource demand
lessens (Berka et al., 2004). In other words, the workload metric is a continuous measure
of resource allocation and cognitive activity in response to task demands.
The workload metric ranges numerically from 0 to 1, with larger values
representing increased workload; and it is divided into three different range classifications:
boredom (up to 0.4), optimal workload (0.4 – 0.7) and stress and information overload
(above 0.7; iMotions, 2016). This metric and the methods behind it have been validated by
several empirical studies across various fields (military, industrial and educational
research; Stevens et al, 2011). It has been shown to significantly correlate with both
subjective self-reports of cognitive load and objective performance on tasks with varying
levels of difficulty and cognitive demand such as the ones mentioned above (Berka, 2007;
Galán & Beal, 2012; Sciarini et al, 2014). The definition of ABM’s workload metric is
consistent with how cognitive load is described in the cognitive theory of multimedia
learning (Mayer, 2009) and cognitive load theory (Sweller, Ayres, & Kalyuga, 2011). By
having identical learning material (i.e., identical demands for essential processing) in both
versions of the simulation, the cognitive load metric is intended to examine the difference
in extraneous and generative cognitive processing during learning between the two
platforms.
A requirement for this mental state metric to be valid and accurate across different
participants is to run an impedance test to ensure that the recordings are within the
recommended impedance tolerances, and to provide a 9-min individualized baseline
benchmark profile for each participant based on three distinct cognitive assessment tasks:
(1) 3-choice Vigilance Task, (2) Visual Psychomotor Vigilance Task, and (3) Auditory
Psychomotor Vigilance Task (for further documentation see Biopac, 2016). For the EEG
measures, average workload was calculated for each respondent within each media
LEARNING IN VIRTUAL REALITY 18
condition by taking the average level of workload while using the simulation, and overload
was the percentage of time the respondent was over the threshold value of 0.7 on the
workload measure.
Data from the surveys and the EEG data were collected using the iMotions
research software platform, which permits synchronization of the brain-based EEG
measures and allows for accessible data analysis of these measures (see iMotions.com for
further information regarding the platform). The data was exported to IBM SPSS version
23.0 for statistical analyses.
2.3 Procedure
Participants were tested individually in a VR learning lab at a European university.
The lab is sound-proofed and the lighting is stable and controlled since there are no
windows. The participants were randomly assigned to either the T or the T+N simulation
condition. Additionally, participants were randomly assigned to receive the VR version
first followed by the PC version or vice versa. The first step in the study design was
preparation, which is shown in Figure 5. Participants were fitted with the EEG sensors
and subsequently data quality tests were run, such as the EEG impedance test, to ensure
that the equipment was functioning properly. Then the experimenter gave oral instructions
on how to complete the following EEG benchmark. The experimenter left the room each
time after instructions were provided, so the participant was alone in the room when the
experimental tasks were performed. The next step was to complete the participant
questionnaire which included the knowledge and transfer tests. These served as pretests to
determine whether participants knew any of the answers before being exposed to the
simulations. This information was subsequently used as a covariate in the analyses. Next,
the participant received the first simulation (based on the randomly assigned condition) for
15 min, and then retook the knowledge and transfer tests, and completed the self-report
LEARNING IN VIRTUAL REALITY 19
survey. Next, the participant received the second simulation (based on the randomly
assigned condition) for 15 min, and then retook the knowledge test, transfer tests, and self-
report survey. Instructions for each component of the experiment were given when
relevant in order not to overload the participant with extraneous information. In order to
ensure equal time on task, participants had 15 minutes with each of the two versions of the
virtual lab simulation, and they dynamically interacted with the simulations at their own
pace. There was no time limit for the pre- and post-questionnaires and learning outcome
tests. The average run time for each participant was about an hour and a half. Each
participant was compensated for their time with a gift card valued at 100 Danish crowns
(about 13 Euros) upon completion. We followed standards for ethical treatment of human
subjects and obtained IRB approval for the study.
A cross-panel study design was selected because a preliminary pilot study showed
that students were very enthusiastic about the use of all versions of the virtual lab
simulation, and that it was not until the students had used both versions (PC and VR) that
they could accurately compare their experiences. The cross-panel design provided a true
experiment after the first intervention, but extra information about the comparison across
media after using both the PC and VR version of the experiment.
3. Results
3.1 Are the instruments valid and reliable?
The first analyses evaluated the validity of the outcome variables used in the study
by testing the fit of the data to the Rasch model (Rasch, 1960). Results indicated that two
items in the knowledge test, one item in the transfer test, and three items in the presence
scale had positive fit residuals above the critical value of ± 2.5 which is an indication that
the items do not measure the intended construct appropriately (Pallant & Tennant, 2007;
Makransky et. al., 2017). Therefore, these items were eliminated from the total and gain
LEARNING IN VIRTUAL REALITY 20
scores reported and analyzed in this paper. The chi-squared fit statistics reported in Table
1 indicate that the remaining scales fit the Rasch model (values over .05 indicate
acceptable fit; Pallant & Tennant, 2007). Table 1 also reports the reliability of the scales
used in the study based on Cronbach’s alpha. The reliability coefficients for the self-
report scales were acceptable with values of .72 and .85 for presence; .84 and .87 for
learning beliefs; .77 and .91 for satisfaction (see top of Table 1). The reliability
coefficients were .68 and .68 for the knowledge test; and .32 and .55 for the transfer test
following the first and second interventions respectively (see bottom of Table 1). Although
the transfer test had low internal consistency reliability, this could be expected because the
items were designed to measure a very broad domain with different content, namely
assessing whether students were able to apply their knowledge to novel and different
problems. The average score on the knowledge pre-test was 2.15 out of 8 (SD = 1.35), and
the transfer test was 3.88 out of 9 (SD = 1.64) across the groups, indicating that the
students did not have a high level of prior-knowledge of the material before using the
simulations.
3.2 Media Effects
The main objective of this study is to determine the consequences of adding
immersive virtual reality to a science lab simulation, particularly on student learning, self-
report ratings, and brain-based measures of overload.
3.2.1 Do students learn better with immersive VR or conventional media? The primary
issue addressed in this paper concerns whether students learn better with immersive VR
(VR group) or with conventional media (PC group). The top two lines of Table 2 show
the mean gain score (and standard deviation) on the knowledge test and transfer test for
the VR group and the PC group. ANCOVAs were conducted with the pre-test score as a
covariate, media (VR vs. PC) and method (text versus text + narration) as independent
LEARNING IN VIRTUAL REALITY 21
variables, and gain scores on knowledge and transfer (i.e., difference between pre-test
score and post-test) as the dependent variables for the first and second intervention,
respectively. The PC group gained significantly more knowledge than the VR group, both
for the first intervention, F(1, 47) = 4.45, p = .040, d = .48, and the second intervention,
F(1, 47) = 8.45, p = .006, d = .80. The advantage of the PC group over the VR group on
the transfer test gain did not reach statistical significance for the first intervention, F(1, 47)
= 0.89, p = .350, or the second intervention, F(1, 47) = 0.43, p =.513. There were no
significant interactions with method for any of the ANCOVAs. We conclude that students
learned more when the material was presented via a PC than via immersive VR. This is a
major empirical contribution of this study.
3.2.2 Do students give more positive self-report ratings to immersive VR or conventional
media? Another important issue addressed in this study concerns whether students
produce more positive self-report ratings when they learn with immersive VR (VR group)
or with conventional media (PC group). The next four lines of Table 2 show the mean and
standard deviation on the ratings of presence, learning beliefs, and satisfaction for the VR
group and the PC group. ANOVAs were conducted with media (VR vs. PC) and method
(text vs. text + narration) as independent variables, and each of the three rating scales as
the dependent variables for the first and second intervention, respectively. The VR group
produced significantly higher ratings of presence than the PC group, both for the first
intervention, F(1, 48) = 28.67, p < .001, d = 1.30, and the second intervention, F(1, 48) =
59.37, p < .001, d = 2.20, indicating that the immersive VR medium was highly successful
in creating a sense of presence for learners. The advantage of the VR group over the PC
group failed to reach statistical significance on the rating of learning beliefs for the first
intervention, F(1, 48) = 0.24, p = .618, and the second intervention, F(1, 48) = 0.54, p
= .467; or on the rating of satisfaction for the first intervention, F(1, 48) = 1.94, p = 0.170,
LEARNING IN VIRTUAL REALITY 22
and the second intervention, F(1, 48) = 0.60, p = .443. There were no significant
interactions with method for any of the ANOVAs. We conclude that students reported
greater sense of presence when the material was presented via immersive VR than via a
desktop computer, thus validating the power of immersive VR to create a sense of
presence in learners. This is another major empirical contribution of this study.
3.2.3 Do students show greater workload brain activity with immersive VR or
conventional media? In addition to behavioral measures of learning outcome and self-
ratings, we included an EEG-based measure of workload in order to determine whether the
VR environment created greater workload than the PC environment. The second-to-last
line of Table 2 shows the mean workload score and standard deviation (with higher scores
showing higher workload) for the VR and PC groups based on EEG data recorded during
learning. ANOVAs were conducted with media (VR vs. PC) and method (text vs. text +
narration) as independent variables, and mean workload as the dependent variable, for the
first and second intervention, respectively. There was no significant difference between
the groups on the first intervention, F(1, 48) = .001, p = .978, but the VR group scored
higher on average workload than the PC group on the second intervention, F(1, 48) = 5.0,
p = .030, d = 0.59.
The final line of Table 2 shows the average proportion of time the participants in
each group scored above the overload level of 0.7 (which indicates cognitive overload) for
the first and second interventions, respectively. Students were overloaded an average of
48.78% of the time, indicating that the science lab simulation was a difficult learning task
for most students. There was no significant difference between the groups on the first
intervention, F(1, 48) = .007, p = .933, but the VR group was overloaded significantly
more than the PC group on the second intervention, F(1, 48) = 5.51, p = .028, d = 0.62.
There were no significant interactions with method for any of the ANOVAs. We conclude
LEARNING IN VIRTUAL REALITY 23
that students were more overloaded during learning later in the session when they were
learning in immersive VR than when they were learning with a desktop computer. This is
a preliminary piece of brain-based evidence suggesting that VR environments may be
overstimulating.
3.3 Method Effects
A secondary objective of this study is to determine the consequences of adding
narration to both media versions of the science lab simulation that presents words as
printed text, particularly on student learning, self-report ratings, and brain-based measures
of cognitive overload.
3.3.1 Do students learn better when words are presented as text and narration or as text
alone? The top two lines of Table 3 show the mean gain scores (and standard deviations)
on the knowledge test and transfer test for the T and the T+N groups. ANCOVAs were
conducted with the pre-test score as a covariate, media (VR vs. PC) and method (text vs.
text + narration) as independent variables, and gains on knowledge and gains on transfer
(difference between pretest score and posttest score) as the dependent variables for the
first and second interventions, respectively. There was no significant difference between
the text and the text + narration groups on the amount of knowledge gained (as measured
by the knowledge test) for the first intervention, F(1, 47) = 0.14, p = .706, and the second
intervention, F(1, 47) = 3.70, p = .060, d = 0.51. There was also no significant difference
between the text and text + narration groups for the gain on the transfer test for the first
intervention, F(1, 47) = 0.00, p = 1.00, or the second intervention, F(1, 47) = 0.34, p
= .562. There was no significant interaction with media for any of the ANCOVAs. We
conclude that there was no redundancy effect and that students learned equally well when
the material was presented with text as when it was presented with text and concurrent
narration.
LEARNING IN VIRTUAL REALITY 24
3.3.2 Do students give more positive self-report ratings when words are presented as text
and narration or as text alone? Another important issue addressed in this study concerns
whether students produce more positive self-report ratings when the material is presented
as text and narration or as text alone. The next four lines of Table 3 show the mean and
standard deviation on the ratings of presence, learning beliefs, and satisfaction for the text
and the text + narration groups. ANOVAs were conducted with media (VR vs. PC) and
method (text vs. text + narration) as independent variables, and each of the three rating
scales as the dependent variables for the first and second interventions, respectively.
There were no significant differences between the two groups for any of the self-report
measures used in the study. That is, the two groups did not differ significantly on their
ratings of presence for the first intervention, F(1, 48) = 0.09, p = .772, or the second
intervention, F(1, 48) = 0.41, p = .524; on the ratings of learning beliefs for the first
intervention, F(1, 48) = 0.17, p = .678, and the second intervention, F(1, 48) = 0.001, p
= .972; or on the rating of satisfaction for the first intervention, F(1, 48) = 0.18, p = .671,
and the second intervention, F(1, 48) = 0.00, p = .982. There was no significant
interaction with media for any of the ANOVAs. We conclude that there is no evidence of
a redundancy effect involving students’ self-report ratings on any of the scales in the
study.
3.3.3 Do students show greater workload brain activity when words are presented as text
and narration or as text alone? The second to last line of Table 3 shows the mean and
the standard deviation of the EEG-based measure of workload (with higher scores showing
higher workload) for the T and T+N groups. ANOVAs were conducted with media (VR
vs. PC) and method (text only vs. text + narration) as independent variables, and average
workload as the dependent variable for the first and second intervention, respectively. The
T group scored significantly higher than the T+N group on the first intervention, F(1, 48)
LEARNING IN VIRTUAL REALITY 25
= 4.99, p = .030, d = 0.61, but the difference did not reach statistical significance on the
second intervention, F(1, 48) = 3.27, p = .077. The final line shows the average
proportion of time the participants in each group scored above the overload level of 0.7 for
the first and second interventions, respectively. There was no significant difference
between the groups on the first intervention, F(1, 48) = 3.03, p = .088, or the second
intervention, F(1, 48) = 3.63, p = .063. There was no significant interaction with media
for any of the ANOVAs. We conclude that students were more overloaded during
learning in the first intervention when they were in the text condition compared to the text
and narration condition, and the difference was not significant in the second intervention.
Overall, across all the dependent measures there is not strong and consistent
evidence that the T and T+N groups differed.
4. Discussion
4.1 Empirical Contributions
Many companies and public institutions are deciding to adapt educational and
training material to immersive VR even though there is a lack of theoretical or scientific
evidence to guide this decision and adaption. The major empirical contribution of this
study is the finding that students felt a greater sense of presence when they used the high-
immersion VR science lab simulation involving a head-mounted display, but they actually
learned less as compared to the low-immersion version of the simulation on a desktop
computer. This finding is consistent with previous studies by Moreno and Mayer (2002)
and Richards and Taylor (2015) who also found lower levels of learning with more
immersive technology. However, the results differ from newer research that has found that
high-immersion VRE’s lead to more learning (e.g., Alhalabi, 2016; Passig et al., 2016;
Webster, 2016).
LEARNING IN VIRTUAL REALITY 26
A second empirical finding in this paper was that the addition of narration to the
simulation that presents words as printed text did not significantly affect student learning
or self-report ratings. There was a significant difference in cognitive load after the first
intervention which showed that the text-only group was more overloaded than the group
that had text and narration. This result is contradictory to the redundancy principle which
states that people learn more deeply from graphics and narration than from graphics,
narration, and on-screen text (Mayer, 2009). The explanation for the redundancy principle
is that the added text competes for visual processing capacity with the graphics and the
learner wastes precious processing capacity trying to reconcile the two verbal streams of
information. It should be noted that the comparison between text versus text and narration
used in this study is not the way that the redundancy effect has been tested in most
previous research, which used a comparison between narration versus narration and text
(Mayer & Fiorella, 2014).
Observations of the students in this study showed that rather than reading and
listening to the same text, some students (specifically in the immersive-VR condition)
simply listened to the narration without reading the text, while others did both. Listening
to text rather than reading it is classified as the modality principle, which has been found
to increase learning and transfer by decreasing cognitive load (Moreno & Mayer, 1999).
Therefore, the lack of significant results related to the method effect of the redundancy
principle, and the unexpected result related to cognitive load in this study, could be the
consequence of a combination of the redundancy principle and modality principle which
concurrently occurred based on the student’s specific behavior.
4.2 Theoretical Implications
Our predictions based on CLT and CTML were that a more immersive VR
environment could increase learning by increasing generative processing because students
LEARNING IN VIRTUAL REALITY 27
are more present in this environment; but that it could also limit learning due to added
extraneous load to the extent that added perceptual realism is distracting and not relevant
to the instructional objective. The results of the study could be an indication that the effect
of added immersion in the VRE was stronger in terms of increasing extraneous load, and
that the added immersion acted as a kind of seductive detail, or what is referred to as “bells
and whistles” by Moreno and Mayer (2002). This finding supports previous research and
theory which proposes that added immersion can interfere with reflection as the
entertainment value of the environment does not give the learner ample time to cognitively
assimilate new information to existing schemas.
Similarly, from Van der Heijden’s (2004) perspective the results could suggest that
students viewed the high-immersion VR simulation as hedonic, which could cause them to
focus on enjoying the environment rather than focusing on learning the material. It is
possible that some students were overwhelmed by the excitement and fun of being in
immersive VR for the very first time, as the technology used in the study is very new. The
novelty of the VR technology and its control scheme and interface could have impeded the
participants’ learning processes through an overall increase in extraneous workload as they
would lack the familiarity and the automaticity that comes with practice and experience in
comparison to the more commonly used desktop environment.
An overarching perspective that combines both the affective and cognitive aspects
of multimedia learning is needed in order to obtain a better understanding of how to build
instructional matarial for immersive VR, which uses a seeks to use a high level of presence
to increase learning. Consistent with advances in motivational theory (Renninger & Hidi,
2016; Wentzel & Miele, 2016) the present study examines the role of affect in science
learning by building on the cognitive affective model of learning with media (Moreno &
Mayer, 2007) and the model of emotional design in game-like environments (Plass &
LEARNING IN VIRTUAL REALITY 28
Kaplan, 2015). Understanding how to harness the affective appeal of virtual environments
is a fundamental issue for learning and instruction because research shows that initial
situational interest can be a first step in promoting learning (Renninger & Hidi, 2016) and
the learner's emotional reaction to instruction can have a substantial impact on academic
achievement (Pekrun, 2016).
When asked about her experience after the experiment one student said: “The first
simulation on the computer was boring, but then when I was in the lab it was fun.” The
reaction is an example of how realistic immersive VR can feel, inasmuch as she had
experienced the immersive VRE as real in comparison with the PC version. The sense of
presence that immersive VR provides can be powerful if the physical and psychological
fidelity of the experience can be channeled into proper cognitive processing to promote
learning. In short, current cognitive theories of learning need to be expanded to include
the role of affective and motivational factors, including a better understanding of the link
between affective factors (include a feeling of presence) and appropriate cognitive
processing during learning. This work has implications for the broad field of learning and
instruction because it helps expand cognitive theories of learning and instruction to make
them more applicable to highly immersive environments.
4.3 Practical Implications
The results of this study and others in this developing field suggest that it is not
appropriate to take a technology-centered approach and expect that the adaptation of
learning material to immersive VR will automatically lead to better learning outomes. If
the goal is to promote learning (rather than simply to promote a sense of presence), it
appears that science lab simulations need not be converted from a desktop-computer
medium to an immersive VR medium. Just because an exciting, cutting-edge technology
is available does not necessarily mean it should be used in all education and training
LEARNING IN VIRTUAL REALITY 29
situations without taking into consideration and utilizing the unique affordances that
comes with this new technology. Conversely, it is too early to write off immersive VR as
it still has the potential to be a viable educational platform if instructional designers take a
learner-centered approach which focuses on how the technology fosters knowledge
acquisition (Mayer, 2009; Moreno & Mayer, 2002) in an attempt to find the boundary
conditions under which added presence is imperative to learning and transfer.
4.4. Methodological Implications
A methodological contribution of this paper was the use of EEG to obtain a direct
measure of cognitive processing during learning, and thus extend the domain of the
emerging field of educational neuroscience (Mayer, 2017). The brain-based measure of
workload showed that students were more overloaded during learning later in the session
when using the immersive VR simulation as compared to the PC version of the simulation.
This is preliminary brain-based evidence suggesting that the reason for a lower level of
learning with immersive VR is that these environments may be overstimulating. The use
of EEG to measure cognitive load is promising because it could provide learning scientists
with the potential of examining the mediating processes within the individual that
influence science learning. The EEG results also showed that students were overloaded an
average of 48.78% of the time during learning which suggests that all versions of the
science lab simulation were too challenging for the sample in the study. This is a good
example of the value of objective cognitive measures because they can give information
about the process by which learning takes place, and can provide specific data about the
particular points within a multimedia lesson that are overloading students (see Figures 2
and 3). This work encourages the idea that brain-based measures can ultimately be used to
help design multimedia educational materials optimally.
4.5. Limitations and Future Directions
LEARNING IN VIRTUAL REALITY 30
One of the research questions in this study was to investigate if the CTML also
applied to immersive VR. The findings did not suggest that there were any differences
between the low- and high-immersion VREs regarding the redundancy principle.
However, more research is needed which compares a narration only condition to a
condition with text and narration. Future research should also investigate if other
principles from CLT and CTML generalize to immersive VR environments. In particular,
it would be interesting to investigate the consequences of the modality principle because
reading text can be more cognitively demanding in immersive VR, whereas spoken words
might not cause extra cognitive load.
In this study we used an experimental design to investigate the differences between
the low- and high-immersion VR simulations. However, this controlled environment
might not be the best way to assess the potential value and impact of immersive VR for
education and training. If immersive VR can engage students more deeply in the content
of a science lab, it is possible that students would use this technology more and thus learn
more. The ultimate idea of using immersive VR simulations in education could be giving
the students a head-mounted display at the beginning of a term which they can use at home
at their discretion with their smartphones. Therefore, given that enough high quality
educational material is available, a fairer way to assess the value of immersive VR could
be to have a longitudinal study which follows students across a longer period of time.
Future research should investigate whether students in real educational environments
would use immersive VR technology more and if this added use leads to more learning.
More field research is also needed to understand how immersive VR might actually be
implemented in different educational settings. In addition, in future work, instead of
measuring engagement by self-report, it would be useful to use online behavioral measures
such as number of mouse clicks.
LEARNING IN VIRTUAL REALITY 31
One limitation of this study was that the technology used was the Samsung Gear
VR, which required the participants to use a touch pad on the right side of the HMD to
emulate the left-click function of a wireless mouse in order to select which objects to
interact with in the lab. On the other hand, the control panel in the PC version was a
mouse (with which the students already had a lot of experience), so the control panel in the
immersive VR condition was new and not very intuitive. The simulation in this study was
designed to create a setting wherein students could perform an experiment where they had
to manipulate different items in a lab using two hands which are guided by the touch pad.
Therefore, they were given a situation in which they were supposed to be active; but they
were not given the tools to do so (rather than being able to manipulate the environment
with their hands it was necessary to use a control panel that was not very intuitive).
Therefore, future research should investigate the value of immersive VR with more
advanced technology that affords a more natural control system. The sample size was also
relatively small in this study because it is so time consuming to conduct this type of
research. Future studies should use larger and different samples and different VR content
to investigate the generalizability of the results.
The use of EEG to measure cognitive load is quite novel in educational settings. A
simple EEG set-up was used in this study as this type of measure could easily be used by
instructional designers who do not have expertise in cognitive neuroscience to measure
cognitive load continuously and use this information to design learning material optimally.
Furthermore, an ultimate instructional goal would be a moment-to-moment assessment of
cognitive load leading to an immediate online adaptation of instructional material when
learners are overwhelmed by the difficulty; or bored because the material is too easy
compared to their working memory capacity (Gerjets et al., 2014). However, more
research is needed that investigates different combinations of raw EEG data. Specifically,
LEARNING IN VIRTUAL REALITY 32
studies have shown that a drop in alpha and increased theta waves is associated with
cognitive load (Gevins et al., 1998; Sauseng et al., 2005; Anetonenko et al., 2010), but
more research is needed to identify optimal combinations in order to provide a robust
measure of cognitive load that is valid across learning settings. More research is also
needed that combines EEG with other process measures in real time, such as eye tracking
and pupil dilation in order to assess the validity of EEG measures of cognitive load (Mills
et al., 2017).
There are several elements within this simulation that could potentially be
improved in an attempt to make the immersive VR platform more successful. One is that
the content in the simulation was difficult (as shown by the previously mentioned overload
average) and might have imposed a heavy intrinsic load on the participants as the sample
in this study was made up of novices. Finally, the immersive VR simulation was adapted
from the PC version, so the specific advantages of immersive VR were not optimized.
There are likely settings where the added presence that VR affords increases learning and
transfer. The National Research Council report (2011) suggests that more evidence is
needed about the value of simulations for developing science process skills, understanding
of the nature of science, scientific discourse and argumentation, and identification with
science and science learning. Immersive VR might be more suited for these advanced
science learning goals, particularly when realistic visualizations of scientific material are
important for gaining a deeper understanding of the subject matter. Higher immersion is
also likely to make a difference in settings where the learning goal is to teach specific
performance skills in realistic settings to an experienced group of students or practitioners.
Furthermore, it seems essential that the design of VR educational content be developed
from the start with the understanding of how this platform can support the given learning
objectives. Therefore, the results in this study suggest that rather than porting educational
LEARNING IN VIRTUAL REALITY 33
content to VR, it is necessary to develop content specifically for VR, with an
understanding of the unique advantages of the technology and how it will impact the
learner.
5. Conclusion
Overall, the present study offers a step in assessing the educational value of low-
cost immersive VR for improving student learning. In line with calls for rigorous
experiments on learning with science simulations (NRC, 2011), the present study provides
evidence for the idea that "liking is not learning"--that is, instructional media that increase
the fun of a simulation--such as the sense of presence--do not necessarily increase student
learning. To the contrary, cutting-edge high-immersion VR can create an increase in
processing demands on working memory and a decrease in knowledge acquisition, as
compared to conventional media. Therefore, considerations of the specific affordance of
immersive VR for learning should be considered in designing learning content for this
media.
LEARNING IN VIRTUAL REALITY 34
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Table 1
Chi-squared fit statistics to the Rasch model and Cronbach’s Alpha Reliability Coefficients
for the Scales in the Study
Scale Number
of items
Rasch chi-squared fit
statistic
Cronbach’s alpha
After 1st
intervention
After 2nd
intervention
After 1st
intervention
After 2nd
intervention
Learning beliefs 8 .81 .85 .84 .87
Satisfaction 7 .07 .39 .77 .91
Presence 10 .27 .34 .72 .85
Knowledge 8 .28 .13 .68 .68
Transfer 9 .52 .35 .36 .55
LEARNING IN VIRTUAL REALITY 44
Table 2
Means and Standard Deviations for the VR and PC Conditions on Eight Measures
1st intervention 2nd intervention
Outcome VR
M (SD)
PC
M (SD)
VR
M (SD)
PC
M (SD)
Test Knowledge gain 1.81 (2.12) 2.92 (2.53) 1.54 (1.39) 2.69 (1.49)
Transfer gain 0.96 (1.18) 1.46 (1.70) 0.38 (1.17) 0.58 (1.06)
Survey Presence 3.50 (0.46) 2.77 (0.50 3.72 (0.49) 2.52 (0.61)
Learning beliefs 3.68 (0.66) 3.59 (0.70) 3.96 (0.70) 3.82 (0.64)
Satisfaction 3.96 (0.44) 3.74 (0.63) 3.95 (0.75) 4.11 (0.61)
EEG Work load 0.63 (0.12) 0.63 (0.11) 0.67 (0.10) 0.60 (0.13)
Overload time 48.75 (21.36) 48.80 (19.81) 55.21 (20.53) 41.44 (24.13)
Note. Bold font indicates significant differences at p < .05.
LEARNING IN VIRTUAL REALITY 45
Table 3
Means and Standard Deviations for Text and Text+Narration Conditions on Eight Measures
1st intervention 2nd intervention
Source Outcome T
M (SD)
T+N
M (SD)
T
M (SD)
T+N
M (SD)
Test Knowledge gain 2.29 (2.79) 2.46 (1.84) 2.46 (1.71) 1.71 (1.23)
Transfer gain 1.25 (1.51) 1.17 (1.46) 0.57 (1.26) 0.38 (0.92)
Survey Presence 3.15 (0.70) 3.11 (0.52) 3.08 (0.79) 3.18 (0.86)
Learning beliefs 3.67 (0.64) 3.59 (0.72) 3.88 (0.67) 3.89 (0.67)
Satisfaction 3.82 (0.60) 3.88 (0.49) 4.02 (0.85) 4.03 (0.44)
EEG Work load 0.66 (0.10) 0.59 (0.13) 0.66 (0.10) 0.60 (0.13)
Overload time 53.29 (20.0) 43.51 (20.0) 53.71 (22.6) 42.04 (22.8)
Note. Bold font indicates significant differences at p < .05.
LEARNING IN VIRTUAL REALITY 46
LEARNING IN VIRTUAL REALITY 47
Figure 1. Screenshot of the simulation used in this study: The top picture is a screenshot from
the PC version and the one below it is a screenshot from the VR, which shows the
stereoscopic display technology used in this version.
LEARNING IN VIRTUAL REALITY 48
A
B
Figure 2. Screen shots of the VR condition where the iMotions system simultaneously
shows the student working through the simulation on the top left panel; the stimulus
they are experiencing in the top right panel; and the continuous EEG workload measure
in the bottom panel of each screen shot.
Screen shot A shows a student answering a multiple-choice question; screen shot B
shows a student doing interactive lab procedures in the VR condition.
LEARNING IN VIRTUAL REALITY 49
A
B
Figure 3. Screen shots of the PC condition where the iMotions system simultaneously
shows the student working through the simulation on the top left panel; the stimulus
they are experiencing in the top right panel; and the continuous EEG workload
measure in the bottom panel of each screen shot.
Screen shot A shows a student getting information from the virtual agent Marie; and
screen shot B shows a student doing interactive lab procedures in the PC condition.
LEARNING IN VIRTUAL REALITY 50
Figure 4. EEG Sensor Locations (ABM, 2016)
LEARNING IN VIRTUAL REALITY 51
Figure 5. An overview of the overall counterbalanced design. Half of the participants used
the simulation with text and narration (redundancy condition), and the other half used the
simulation with screen text alone.
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This chapter deals with the evolution of research in English language education linked to applied technologies, under the ubiquitous paradigm, over the past 60 years (1960-2021). Descriptive (authors, articles, citations) and relational (co-words, co-citation, co-author) bibliometric indicators are used to trawl a database of 5219 documents from Scopus. Bibliometrix R package, biblioshiny, and VOSviewer analysis are handled to draw the trends of this area around the world. The findings demonstrate that main topics passed from ESL to technology education to the technology integration for learning processes. The trending topics for the field include mobile-assisted language learning, WhatsApp (and other social media), gamification, virtual reality, and online learning. Well-developed topics include motivation, writing, and teacher education. Future research directions are also discussed.
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This paper explores the potential of neuroscience for improving educational practice by describing the perspective of educational psychology as a linking science; providing historical context showing educational psychology’s 100-year search for an educationally relevant neuroscience; offering a conceptual framework for the connections among neuroscience, cognitive science, educational psychology, and educational practice; and laying out a research agenda for the emerging field of educational neuroscience.
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Background: Simulation based learning environments are designed to improve the quality of medical education by allowing students to interact with patients, diagnostic laboratory procedures, and patient data in a virtual environment. However, few studies have evaluated whether simulation based learning environments increase students’ knowledge, intrinsic motivation, and self-efficacy, and help them generalize from laboratory analyses to clinical practice and health decision-making. Methods: An entire class of 300 University of Copenhagen first-year undergraduate students, most with a major in medicine, received a 2-hour training session in a simulation based learning environment. The main outcomes were pre- to post- changes in knowledge, intrinsic motivation, and self-efficacy, together with post-intervention evaluation of the effect of the simulation on student understanding of everyday clinical practice were demonstrated. Results: Knowledge (Cohen’s d = 0.73), intrinsic motivation (d = 0.24), and self-efficacy (d = 0.46) significantly increased from the pre- to post-test. Low knowledge students showed the greatest increases in knowledge (d = 3.35) and self-efficacy (d = 0.61), but a non-significant increase in intrinsic motivation (d = 0.22). The medium and high knowledge students showed significant increases in knowledge (d = 1.45 and 0.36, respectively), motivation (d = 0.22 and 0.31), and self-efficacy (d = 0.36 and 0.52, respectively). Additionally, 90% of students reported a greater understanding of medical genetics, 82% thought that medical genetics was more interesting, 93% indicated that they were more interested and motivated, and had gained confidence by having experienced working on a case story that resembled the real working situation of a doctor, and 78% indicated that they would feel more confident counseling a patient after the simulation. Conclusions: The simulation based learning environment increased students’ learning, intrinsic motivation, and self-efficacy (although the strength of these effects differed depending on their pre-test knowledge), and increased the perceived relevance of medical educational activities. The results suggest that simulations can help future generations of doctors transfer new understanding of disease mechanisms gained in virtual laboratory settings into everyday clinical practice.
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The author investigated the interaction effect of immersive virtual reality (VR) in the classroom. The objective of the project was to develop and provide a low-cost, scalable, and portable VR system containing purposely designed and developed immersive virtual learning environments for the US Army. The purpose of the mixed design experiment was to compare lecture-based and immersive VR-based multimedia instruction, in terms of declarative knowledge acquisition (i.e. learning) of basic corrosion prevention and control with military personnel. Participants were randomly assigned to the control group (N = 115) or investigational group (N = 25) and tested immediately before and after training. The author accessed learning outcomes from the pre-exam and post-exam scores and VR system usability from exit questionnaires. Results indicate that both forms of instruction will increase learning. VR-based did produce higher gain scores and there was a statistically significant interaction between instruction type and time.
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The world needs young people who are skillful in and enthusiastic about science and who view science as their future career field. Ensuring that we will have such young people requires initiatives that engage students in interesting and motivating science experiences. Today, students can investigate scientific phenomena using the tools, data collection techniques, models, and theories of science in physical laboratories that support interactions with the material world or in virtual laboratories that take advantage of simulations. Here, we review a selection of the literature to contrast the value of physical and virtual investigations and to offer recommendations for combining the two to strengthen science learning.
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Application of physiological methods, in particular electroencephalography (EEG), offers new and promising approaches to educational psychology research. EEG is identified as a physiological index that can serve as an online, continuous measure of cognitive load detecting subtle fluctuations in instantaneous load, which can help explain effects of instructional interventions when measures of overall cognitive load fail to reflect such differences in cognitive processing. This paper presents a review of seminal literature on the use of continuous EEG to measure cognitive load and describes two case studies on learning from hypertext and multimedia that employed EEG methodology to collect and analyze cognitive load data. KeywordsElectroencephalography-Cognitive load-Educational psychology
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Virtual reality (VR) is being used for many applications, ranging from medicine to space and from entertainment to training. In this research paper, VR is applied in engineering education, the scope being to compare three major VR systems with the traditional education approach when we do not use any VR system (No-VR). The Corner Cave System (CCS) is compared with the Head Mounted Display (HMD) system. Both of these systems are using a tracking system to reflect the user movements in the virtual environment. The CCS uses only three coordinates: x-, y- and z-axis. The HMD system has six degrees of freedom, the x-, y- and z-axis, as well as the roll, pitch and yaw. Those two systems are also compared with HMD, as a standalone device (HMD-SA) without the tracking system where it has only roll, pitch and yaw. The objective of the study was to evaluate the impact of VR systems on the students’ achievements in engineering colleges. The research examined the effect of the four different methods and compared the scores of the students after each test. The experiments were ran over 48 students. Those systems show incredible results.
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The integration of brain monitoring into the man-machine interface holds great promise for real-time assessment of operator status and intelligent allocation of tasks between machines and humans. This article presents an integrated hardware and software solution for acquisition and real-time analysis of the electroencephalogram (EEG) to monitor indexes of alertness, cognition, and memory. Three experimental paradigms were evaluated in a total of 45 participants to identify EEG indexes associated with changes in cognitive workload: the Warship Commander Task (WCT), a simulated navy command and control environment that allowed workload levels to be systematically manipulated; a cognitive task with three levels of difficulty and consistent sensory inputs and motor outputs; and a multisession image learning and recognition memory test. Across tasks and participants, specific changes in the EEG were identified that were reliably associated with levels of cognitive workload. The EEG indexes were also shown to change as a function of training on the WCT and the learning and memory task. Future applications of the system to augment cognition in military and industrial environments are discussed.
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We assessed working memory load during computer use with neural network pattern recognition applied to EEG spectral features. Eight participants performed high-, moderate-, and low-load working memory tasks. Frontal theta EEG activity increased and alpha activity decreased with increasing load. These changes probably reflect task difficulty-related increases in mental effort and the proportion of cortical resources allocated to task performance. In network analyses, test data segments from high and low load levels were discriminated with better than 95% accuracy. More than 80% of test data segments associated with a moderate load could be discriminated from high- or low-load data segments. Statistically significant classification was also achieved when applying networks trained with data from one day to data from another day, when applying networks trained with data from one task to data from another task, and when applying networks trained with data from a group of participants to data from new participants. These results support the feasibility of using EEG-based methods for monitoring cognitive load during human-computer interaction.