Authors
Brandon Tinklenberg
York University
Abstract
Cognitive abilities cannot be measured directly. What we can measure is individual variation in task performance. In this paper, we first make the case for why we should be interested in mapping individual differences in task performance on to particular cognitive abilities: we suggest that it is crucial for examining the causes and consequences of variation both within and between species. As a case study, we examine whether multiple measures of inhibitory control for non-human animals do indeed produce correlated task performance; however, no clear pattern emerges that would support the notion of a common cognitive ability underpinning individual differences in performance. We advocate a psychometric approach involving a three-step programme to make theoretical and empirical progress: first, we need tasks that reveal signature limits in performance. Second, we need to assess the reliability of individual differences in task performance. Third, multi-trait multi-method test batteries will be instrumental in validating cognitive abilities. Together, these steps will help us to establish what varies between individuals that could impact their fitness and ultimately shape the course of the evolution of animal minds. Finally, we propose executive functions, including working memory, inhibitory control and attentional shifting, as a sensible starting point for this endeavour.
Keywords evolution of cognition  animal cognition  cognitive explanation
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References found in this work BETA

Primate Cognition.Amanda Seed & Michael Tomasello - 2010 - Topics in Cognitive Science 2 (3):407-419.
Primate Cognition.Michael Tomasello & Josep Call - 1997 - Oxford University Press USA.
Construct Validity in Psychological Tests.Lee J. Cronbach & P. E. Meehl - 1956 - In Herbert Feigl & Michael Scriven (eds.), Minnesota Studies in the Philosophy of Science. , Vol. pp. 1--174.

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