Guided R workflow for scale development and construct validation: item screening, factor retention, CFA, reliability, bifactor and higher-order models, measurement invariance, scoring, and theory-specified nomological networks. Every method is placed in its literature and cited.
r cfa reliability factor-analysis structural-equation-modeling lavaan psychometrics research-methods measurement-invariance scale-development construct-validity factor-scores
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Updated
Oct 4, 2026 - R