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<p>Edelsbrunner et al.&#xa0;<i>Educational Psychology Review,</i> <i>37</i>, 1–43, <CitationRef CitationID="CR12">2025</CitationRef> recently published a systematic review and meta-analysis of Cronbach's alphas in domain-specific knowledge tests. While appreciating their analysis and agreeing with most findings, we disagree with three messages regarding the use of alpha in knowledge tests: (1) alpha measures the strength of interrelations among items, (2) a low alpha indicates validity, and (3) thresholds for alpha be abandoned. We discuss these messages in a constructive manner and present a way to counteract the inflation of seemingly high alphas in educational psychology.</p>

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Why We Might Still be Concerned About Low Cronbach’s Alphas in Domain-specific Knowledge Tests

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月11日

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  • Steffen Zitzmann,
  • Gabe A. Orona

摘要

Edelsbrunner et al. Educational Psychology Review, 37, 1–43, 2025 recently published a systematic review and meta-analysis of Cronbach's alphas in domain-specific knowledge tests. While appreciating their analysis and agreeing with most findings, we disagree with three messages regarding the use of alpha in knowledge tests: (1) alpha measures the strength of interrelations among items, (2) a low alpha indicates validity, and (3) thresholds for alpha be abandoned. We discuss these messages in a constructive manner and present a way to counteract the inflation of seemingly high alphas in educational psychology.