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Measuring individual differences in cognitive abilities in the lab and on the web
Simón Ruiz1, Xiaobin Chen1, Patrick Rebuschat1,2
1LEAD Graduate School and Research Network, University of Tübingen, Tübingen, Germany.
Plos One
|December 12, 2019
Summary
Web-based cognitive tests for second language research, including working memory and declarative memory, show comparable results to lab-based versions. This validates online assessments for broader use and improved research capabilities.
Area of Science:
- Cognitive Psychology
- Second Language Acquisition Research
Background:
- Cognitive individual difference measures are crucial in second language acquisition (SLA) research.
- Traditional lab-based testing faces limitations like restricted sampling and low statistical power.
Purpose of the Study:
- To validate web-based versions of widely used cognitive measures (working memory, declarative memory) for SLA research.
- To enhance accessibility of these measures for the wider research community.
- To address methodological challenges in SLA research through online testing.
Main Methods:
- Comparison of lab-based and web-based administration modes for cognitive tests.
- Assessment of measurement equivalence between the two testing formats.
- Inclusion of working memory and verbal/nonverbal declarative memory measures.
Main Results:
- Lab-based and web-based test versions demonstrated overall equivalence.
- The strength of equivalence varied across measures, being stronger for working memory and verbal declarative memory.
- Nonverbal declarative memory showed weaker equivalence between administration modes.
Conclusions:
- Web-based cognitive testing is a viable and equivalent alternative to lab-based testing in SLA research.
- Validated online measures can improve sample sizes and statistical power in individual differences research.
- The findings support the broader adoption of web-based cognitive assessments in second language research.
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