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Updated: Oct 10, 2025

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Quantifying the Distorting Effect of Rapid Guessing on Estimates of Coefficient Αlpha

Joseph A Rios1, Jiayi Deng1

  • 1Department of Educational Psychology, University of Minnesota, Minneapolis, MN.

Applied Psychological Measurement
|December 13, 2021
PubMed
Summary

Rapid guessing (RG) minimally impacts reliability measures like coefficient alpha. This study found that even with varying levels of RG, the distortion in reliability estimates remained small, suggesting robustness.

Keywords:
Reliabilitycoefficient alphanon-effortful respondingrapid guessingtest-taking motivation

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