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Coefficient α as a measure of test score reliability: Review of 3 popular misconceptions

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  • Morera, O.F.
  • Stokes, S.M.

Abstract

We discuss 3 popular misconceptions about Cronbach α or coefficient α, traditionally used in public health and the behavioral sciences as an index of test score reliability. We also review several other indices of test score reliability. We encourage researchers to thoughtfully consider the nature of their data and the options when choosing an index of reliability, and to clearly communicate this choice and its implications to their audiences.

Suggested Citation

  • Morera, O.F. & Stokes, S.M., 2016. "Coefficient α as a measure of test score reliability: Review of 3 popular misconceptions," American Journal of Public Health, American Public Health Association, vol. 106(3), pages 458-461.
    • Handle: RePEc:aph:ajpbhl:10.2105/ajph.2015.302993_8
    DOI: 10.2105/AJPH.2015.302993
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    Cited by:

    1. Setiawan, Adib Rifqi, 2019. "Designing Fiqh Mu'āmalāt Learning Program to Guide Secondary Students on Achieving Financial Literacy," OSF Preprints aew2n, Center for Open Science.
    2. Merhawi T. Gebrezgi & Mary Jo Trepka & Semiu O. Gbadamosi & Kristopher P. Fennie & Daisy Ramirez-Ortiz & Tan Li & Sofia B. Fernandez & Petra Brock & Robert A. Ladner & Diana M. Sheehan, 2021. "Development and Validation of Vulnerable and Enabling Indices for HIV Viral Suppression among People with HIV Enrolled in the Ryan White Program," IJERPH, MDPI, vol. 18(13), pages 1-11, July.
    3. Francisco Alonso & Cristina Esteban & Mireia Faus & Sergio A. Useche, 2022. "Differences in the Assessment of Safe and Risky Driving Behaviors: Pedestrians Versus Drivers," SAGE Open, , vol. 12(2), pages 21582440221, June.

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