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BCP Education & Psychology ESS 2022
Volume 7 (2022)
412
The Relationship between Students' Study Time and Academic
Performance and its Practical Significance
Mukun Liu
Queen’s University, Kingston, K7L 3N6, Canada
Abstract. Students' study time and academic performance can reflect their learning status. This
study investigates the relationship between study time and academic performance by analyzing the
number of selected courses, study time, and grades provided by open-source data sites. The effect
of study time on academic performance was studied using linear regression. Studies have observed
a positive relationship between study time and academic performance. When the study time reaches
a certain standard, the grade will no longer show a significant change. This paper can assess
students' learning status and help them plan their study time reasonably.
Keywords: Academic Performance; Study Efficiency; Time Investment.
1. Introduction
1.1 Background
Nowadays, people have been increasingly competitive since their student days due to the vast
population base when they apply for a higher-level school or better job. According to a survey of
more than 200 employers by the American Association of Colleges and Employers, 67% of
companies said they screen candidates by GPA (Davies & Hammack, 2005), which can reflect the
importance of academic success on future careers. In order to achieve success, students not only have
to use the appropriate skills, but also put in a lot of effort. Effort is central to strategy use which, in
turn, results in improved academic performance (Meltzer, 2001). The effort can be reflected by the
engagement of students in school and the levels of engagement can be estimated from the amount of
time spent on academics (Ed, 1992).
Learning takes time and curricula are designed to provide students with opportunities to learn
during classes and during time for self-study (Genesee, 2000). It is generally considered that, as more
time is spent on learning, performance will be better. At the same time, students are full of confusion
about their future career development during the student period. They may spend time on their
hobbies to find future goals which could make them balanced the time allocation between hobbies
and learning, resulting in problems such as grade decline due to unreasonable time allocation. Issues
with school performance can lead to more problems, such as family conflicts or loss of interest on
learning. The research shows that the social and emotional climate of family relationships is adversely
affected by poor school performance; at the same time, family atmosphere is a mediating, factors
problems which may result from school failure (Hurrelmann et al., 1988).
Whether the investment of study time is related to academic performance is a controversial issue.
One the one hand, the research shows that academic performance has a positive relationship with the
study time, and students with low performance especially increase their performances with increased
study time (Spitzer, 2022). In this article, based on his conclusions, analyzing the further impact as
the study time keeps increasing, trying to find the limitation of the time investment.
On the other hand, some people have an Opposite view on this conclusion. The total time students
spent working during a given week did not directly affect academic performance (Sarath, 2006). The
conclusion may be led by the method he collected samples. Distributing surveys to students may not
feel comfortable providing answers that present themselves in an unfavorable manner. Also, since
students may have different foundations in high schools, the result could be inaccurate.
All in all, this research will analyze the relationship between study time and academic performance
based on the data collected from two Portuguese secondary schools. The marginal contribution of
research lies in that school reports and questionnaires are used simultaneously to avoid some research
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biases. Then, the grades of Portuguese can objectively test the students’ academic performances, since
the investment of student time will have more pronounced feedback on grades.
1.2 Literature Review
The SWQ's current field size shows that academic issues are the biggest concern for students, even
more so than finances and health (Davey et al., 2021). Does the longer you study, the better your
grades will get? This research problem may be concerned by many scholars and students.
In addition, further testing the impact of different educational methods on students' learning
efficiency can help teachers discover the suitable educational methods for their students.
For students, self-awareness about study time means self-control of study state, and can compare
their study state with others, to understand and adjust their study methods and better plan study time.
Finally, this can make them no longer be confused about learning, increase their enthusiasm for
learning and reduce their anxiety about learning. By leveling the study efficiency, it would lead to
good grades.
1.3 Main Contents
This study aims to study the relationship between study time and academic performance. This
research will be answered in following questions: (1) Whether the study time will affect the students’
academic performance? (2) If it is, how does study time affect academic performance?
2. Data and Method
2.1 Data Source
Data for this study came from a survey in two Portuguese schools. The data includes student grades,
demographic, social and school related features by using school reports and questionnaires. The
dataset received questionnaires from 651 students. 386 of them are female students and 265 of them
are male students.
2.2 Measures
The academic performance of a student can be reflected by the grades of the student which was
discussed in this research. In this case, firstly, students' performance was measured by the test in a
subject: Portuguese language (por). The grade of the test was out of 20.
Secondly, the study time was measured by 1-4 scale (1 = less than two hours of study time per
week, 2 = 2 to 5 hours of study time per week, 3 = 3 and 4 = 5 to 10 hours and more than 10 hours).
For each set, 20 students were chosen (10 boys and 10 girls) which are used to control variables, and
to facilitate and find patterns.
2.3 Method
The primary method of the study is called linear regression. By plotting the study time of each
student and its corresponding grades. The linear regression model aims to find the best fit line of the
plot diagram. The best fit line is relating to the formula y= mx +c. For this study, the variable X
represents the students’ study time and Y represents the Portuguese grades. m and c are the gradient
and constant values defining the straight line. To compute the linear regression, the approach
introduced is called the least-square method which minimizes the squared difference between the
actual data points and a straight line. In this case, the values of m and c seeked is to minimize the
squared difference SD.
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2.4 Result and Discussion
Figure 1. The Portuguese Grades of Student in Each Time Period
Slope SE
t
p
Intercep
t
6.2 0.485422 12.77239 8.33E-21
X variable 1.87 0.177251 10.55001 1.12E-16
Figure 2. Result of Time Investment on Study
3. Result
From the Figure 1, it can be seen that there's a positive linear relationship between the time
investment on study and students’ grades which can indicate the more study time, the better academic
performance. However, there's a limitation which can be seen from the Figure 1. When the study time
reaches 3 (5-10 hours), the student's grade has no significant change compared with 4 (over time
hours). As we see from Table 2, the coefficient of variable X is 1.87 which also indicates the positive
relation between X and Y.
4. Discussion
Study time was recognized as an important factor for students’ grade. Students need different
levels of effort based on their knowledge difficulty, learning ability, and career goals. Firstly, students
should invest the necessary study time if they want to get better grade. Secondly, academic
performance does not need to make further requirements on the amount of study time, and the main
point is to improve the learning skills. For example, they can make good use of the time and find
suitable learning methods. Otherwise, it will not make much difference no matter the time invested
more or less. Students should not blindly pursue the length of learning time, but should focus on the
learning quality in each hour. Reasonable improvement of study efficiency can not only save learning
time, but also allow students to have extra time to explore extracurricular interests. All in all, it is
essential to spend enough time, but it is even more critical to get learning benefits during this period.
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References
[1] Davies, S., & Hammack, F. M. (2005). The channeling of student competition in Higher Education:
Comparing Canada and the U.S. The Journal of Higher Education, 76(1), 89–106. https:// doi.org/
10.1080/ 00221546.2005.11772276.
[2] Meltzer, L., Katzir-Cohen, T., Miller, L., & Roditi, B. (2001). The Impact of Effort and Strategy Use on
Academic Performance: Student and Teacher Perceptions. Learning Disability Quarterly, 24(2), 85–98.
https:// doi.org/10.2307/1511065.
[3] Ed, N. F. M. (1992). Student engagement and achievement in American Secondary Schools. Teachers
College Press.
[4] Spitzer, M.W.H. Just do it! Study time increases mathematical achievement scores for grade 4-10 students
in a large longitudinal cross-country study. Eur J Psychol Educ 37, 39–53 (2022). https:// doi.org/
10.1007/s10212-021-00546-0.
[5] Sarath A. Nonis & Gail I. Hudson (2006) Academic Performance of College Students: Influence of Time
Spent Studying and Working, Journal of Education for Business, 81:3, 151-159, DOI: 10.3200/ JOEB.
81.3. 151-159.
[6] Hurrelmann, K., Engel, U., Holler, B., & Nordlohne, E. (1988). Failure in school, family conflicts, and
psychosomatic disorders in adolescence. Journal of Adolescence, 11(3), 237–249. https://doi. org/ 10.
1016/ s0140-1971(88)80007-1.
[7] Davey, G. C., Meeten, F., & Field, A. P. (2021). What’s worrying our students? increasing worry levels
over two decades and a new measure of student worry frequency and domains. Cognitive Therapy and
Research, 46(2), 406–419. https://doi.org/10.1007/s10608-021-10270-0.
[8] Samuelsson, J. (2008). The impact of different teaching methods on students’ arithmetic and self‐
regulated learning skills. Educational Psychology in Practice, 24(3), 237–250. https:// doi.org/ 10. 1080/
02667360802256790.