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Meeting assumptions in the estimation of reliability

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  • Brian P. Shaw

    (Indiana University)

Abstract

Researchers and psychometricians have long used Cronbach’s α as a measure of reliability. However, there have been growing calls to replace Cron- bach’s α with measures that have more defensible assumptions. One of the most common and straightforward recommended reliability estimates is ω. After a re- view of reliability and its estimation in Stata, I introduce the community-con- tributed command omegacoef. This command reports McDonald’s ω in a format similar to the base alpha command. omegacoef provides Stata users the ability to easily compute estimates of reliability with the confidence that the necessary statistical assumptions are met.

Suggested Citation

  • Brian P. Shaw, 2021. "Meeting assumptions in the estimation of reliability," Stata Journal, StataCorp LP, vol. 21(4), pages 1021-1027, December.
    • Handle: RePEc:tsj:stataj:v:21:y:2021:i:4:p:1021-1027
    DOI: 10.1177/1536867X211063407
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    Cited by:

    1. André Hajek & Tadanori Imai & Larissa Zwar & Hans-Helmut König, 2024. "Translation and Validation of the German Version of the Ikigai-9," Societies, MDPI, vol. 14(3), pages 1-10, March.
    2. André Hajek & Hans-Helmut König, 2023. "Do Individuals with High Climate Anxiety Believe That They Will Die Earlier? First Evidence from Germany," IJERPH, MDPI, vol. 20(6), pages 1-8, March.
    3. André Hajek & Hans-Helmut König, 2022. "Climate Anxiety, Loneliness and Perceived Social Isolation," IJERPH, MDPI, vol. 19(22), pages 1-11, November.

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