Theory: The Cognition Hypothesis
Author: Peter Robinson
[To cite this excerpt, please use this information: Robinson, P. (2022).The cognition hypothesis and individual difference factors in SLA. In S. Li, P. Hiver, and M. Papi (Eds.), The Routledge handbook of SLA and individual differences (pp. 3–33). Chapter 1: Individual Differences in Second LanguageAcquisition:Theories,Research,and Pedagogy.NewYork:Routledge.]
Major Tenets of the Theory
The Cognition Hypothesis claims that pedagogic tasks should be sequenced from simple to complex (in instructional settings and syllabuses) in terms of their attentional, memory, reasoning, and other intrinsic cognitive resource demands, and that such sequencing will promote the develop- ment of the language needed to accomplish tasks, as well as the ability to successfully perform real-world tasks that pedagogic tasks are based on, outside classrooms, or other settings for second language (L2) instruction (Robinson, 2015). The Cognition Hypothesis distinguishes between resource-directing dimensions of task complexity, in which the cognitive demands tasks make (such as understanding and explaining why an event or series of events caused another event to occur) also direct attention to aspects of the second language that can be used to perform them (e.g., causal connectors “because”, “therefore”, linking conjoined clauses), and resource-dispersing dimensions of task complexity which increase attentional and other cognitive demands, but without directing attentional or memory resources to any aspects of language that can be used to accomplish the task (such as taking away planning time).
There are five ancillary theoretical claims of the Cognition Hypothesis.The first concerns effects of task complexity on language production: 1) monologic tasks which are complex along resource- directing dimensions lead to greater accuracy and complexity of production, but less fluency than simpler tasks along those dimensions. Interactive tasks which are complex along resource-directing dimensions will lead to greater accuracy and less fluency than simpler counterpart versions of tasks. In contrast, along resource-dispersing dimensions of task complexity, complex versions of tasks will lead to lower accuracy, fluency, and complexity of language used relative to simpler versions. Other ancillary theoretical claims are that 2) complex versions of interactive L2 tasks, along any dimensions of task complexity, will lead to more interaction, negotiation of meaning, and language-related episodes (LREs) to resolve misunderstandings, 3) more uptake of corrective feedback provided proactively in the input or reactively during performance, 4) greater long-term retention and memory for input provided on cognitively complex, compared to simpler, versions of tasks, and 5) individual differences between learners in abilities, affective states, and dispositions will increasingly differentiate learning and performance on tasks as they increase in complexity.
TheTriadic Componential Framework provides a taxonomy of task characteristics—that can be manipulated to increase task complexity along resource-directing and resource-dispersing dimen- sions of task demands—as a basis for designing and sequencing increasingly cognitively complex versions of pedagogic tasks for learners.The SSARC model provides a stepwise guide for how to progressively increase the complexity of pedagogic versions of tasks, by first having versions simple on both resource-directing and resource-dispersing dimensions of task demands (SS, sim- ple, stabilize), then second increasing the complexity of the resource-dispersing dimensions (A, automatize access to existing language knowledge), and finally increasing both the complexity of resource-directing and resource-dispersing dimensions (RC, restructure, complexify interlanguage resources). In this way, the full complexity of real-world tasks involving use and comprehension of the L2 can be gradually approximated via a sequence of increasingly cognitively complex peda- gogic task versions.
The Role of Individual Difference Factors in the Theory
The Triadic Componential Framework also distinguishes Task Complexity (the cognitive demands of tasks just referred to) from Task Conditions, which is the interactive participation and participant factors involved in task performance, and Task Difficulty, which refers to learners’ perceptions of task demands which will be affected by individual differences between learners in the cognitive abilities and affective dispositions and traits learners bring to task performance.Task complexity will help explain within-learner variance in the extent to which any one person is able to perform two tasks making greater versus lesser cognitive demands (any one person should always find it harder to accomplish, and be less successful at, tasks high in, for example, causal reasoning demands compared to tasks low in, or with no, causal reasoning demands).Task difficulty will help explain between-learner variance in the extent to which any two people differing, for example, in their causal reasoning abil- ity will be able to be successful on, and meet the cognitive demands of, any one complex version of a second language pedagogic task that requires causal reasoning ability (such as explaining how multiple factors led to changes in a person’s medical condition).So a learner high in causal reasoning ability will find the complex version of a task in the L2 requiring that ability to be less difficult than a learner low in reasoning ability, and so will likely be more successful in performing it.
Task characteristics contributing to their complexity will be differentially related to some abil- ity variables but not others. For example, along a resource-directing dimension of complexity, here-and-now/there-and-then, tasks requiring a series of events that happened sometime in the past, elsewhere (there-and-then) to be described can be expected to draw on working memory abilities much more than tasks requiring a description of events occurring now in a shared setting (here-and-now). Abilities and affective dispositions will therefore interact in specific ways with the specific cognitive demands of tasks to affect the accuracy, fluency, and complexity of language produced, and success in performing the L2 task (Robinson, 2015).
Individual differences between learners in their abilities and affective factors contributing to perceptions of task difficulty will have their greatest effects on L2 learning and performance on cognitively complex versions of tasks. For this reason, it will be important to profile learners’ abili- ties and assess affective dispositions and tendencies, so as to match their “task aptitudes” to more complex versions of tasks having characteristics, described in the triadic componential framework, that draw on the sets of abilities they are high in, thereby helping ensure sequences of those tasks lead to success and optimal opportunities for language use and development. Alternatively, where learners must perform a sequence of tasks having certain characteristics (e.g., + spatial reasoning) that draw on abilities they are low in, then extra practice and compensatory support for performance can be provided.