substantive-validity

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JUhalt / contentvalidR

R tools for substantive and content-validity scale pretesting: item sorting, construct ratings, expert panels, Delphi rounds, judge heterogeneity, and domain coverage, with exact inference, reproducible reporting, and a handoff into empirical validation.

delphi r psychology measurement psychometrics research-methods scale-development content-validity expert-panel substantive-validity

Updated Sep 23, 2026
R

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