ICPS
2021 APS Virtual Convention · 2021
Testing the Factor Structure of a Behavioral Task of Executive Functioning: Reliability of the Stop Signal Paradigm Varies across Sub-Blocks
- Jodi Sutherland
University of Rhode Island - Evelyn Valencia
University of Rhode Island - Hector Lopez-Vergara
University of Rhode Island
Abstract
Confirmatory factor analyses tested the latent structure of the Stop-Signal-Paradigm. Indicators were three 64-trial sub-blocks; a single factor explained task performance. Results suggest that 50%, 39%, and 12% of the variance in sub-blocks 1-3 (respectively) was measurement error. Models that quantify measurement error should be used when using experimental tasks.
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