Title |
The Role of Psychometrics in Individual Differences Research in Cognition: A Case Study of the AX-CPT
|
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Published in |
Frontiers in Psychology, September 2017
|
DOI | 10.3389/fpsyg.2017.01482 |
Pubmed ID | |
Authors |
Shelly R. Cooper, Corentin Gonthier, Deanna M. Barch, Todd S. Braver |
Abstract |
Investigating individual differences in cognition requires addressing questions not often thought about in standard experimental designs, especially regarding the psychometric properties of the task. Using the AX-CPT cognitive control task as a case study example, we address four concerns that one may encounter when researching the topic of individual differences in cognition. First, we demonstrate the importance of variability in task scores, which in turn directly impacts reliability, particularly when comparing correlations in different populations. Second, we demonstrate the importance of variability and reliability for evaluating potential failures to replicate predicted correlations, even within the same population. Third, we demonstrate how researchers can turn to evaluating psychometric properties as a way of evaluating the feasibility of utilizing the task in new settings (e.g., online administration). Lastly, we show how the examination of psychometric properties can help researchers make informed decisions when designing a study, such as determining the appropriate number of trials for a task. |
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Geographical breakdown
Country | Count | As % |
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United Kingdom | 2 | 20% |
Netherlands | 1 | 10% |
United States | 1 | 10% |
Switzerland | 1 | 10% |
Unknown | 5 | 50% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 8 | 80% |
Scientists | 2 | 20% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 160 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 39 | 24% |
Researcher | 19 | 12% |
Student > Master | 19 | 12% |
Student > Bachelor | 11 | 7% |
Student > Doctoral Student | 10 | 6% |
Other | 27 | 17% |
Unknown | 35 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Psychology | 67 | 42% |
Neuroscience | 12 | 8% |
Social Sciences | 5 | 3% |
Agricultural and Biological Sciences | 4 | 3% |
Medicine and Dentistry | 4 | 3% |
Other | 16 | 10% |
Unknown | 52 | 33% |