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From:
Russell T. Warne
(Uncensored)
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Comparing Cronbach’s alpha and McDonald’s omega reliability values
https://russellwarne.com/2025/04/13/comparing-cronbachs-alpha-and-mcdonalds-omega-reliability-values/?utm_source=rss&utm_medium=rss&utm_campaign=comparing-cronbachs-alpha-and-mcdonalds-omega-reliability-values
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When subtests consist of well constructed items, the underestimate from using Cronbach's alpha is usually pretty small -- about 4.5%.
