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Blazej Mrozinski
v0.15.8 June 2, 2026

Blog: Discriminant Validity in Practice

New blog post: "Discriminant Validity in Practice: How to Tell a New Construct From a Renamed One" (/blog/discriminant-validity-new-construct-or-renamed/, label research).

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Added

  • **New blog post: "Discriminant Validity in Practice: How to Tell a New Construct From a Renamed One"** (`/blog/discriminant-validity-new-construct-or-renamed/`, label `research`). A deep-dive on how to tell whether a newly-named construct is empirically distinct from an established one, or just a relabel (the jangle fallacy). Walks the three standard discriminant-validity procedures (Fornell-Larcker criterion, HTMT ratio, nested CFA chi-square test) with an illustrative pass/fail table, a real resolved case (grit vs conscientiousness, Credé, Tynan & Harms 2017), and one open untested case (trust ambiguity vs psychological safety).
  • Internal links to four existing validity-family glossary entries (construct-validity, convergent-validity, discriminant-validity, confirmatory-factor-analysis) and to four prior psychometric posts (Q12 engagement, NPS, popular-leadership-constructs, leader-traits).