Beyond Cronbach’s Alpha: How We Tested the PHQ-9 and DASS-21 Using CFA, IRT and Network Analysis
See how CFA, item response theory and network analysis revealed what reliability coefficients alone could not about the PHQ-9 and DASS-21.
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Tag: confirmatory factor analysis
DASS-21 Reliability and Factor Structure in Pakistani University Students
New Pakistani data support good DASS-21 reliability and adequate factor-model fit, while raising questions about separation of its three subscales.
Does the DASS-21 Really Measure Three Distinct Constructs? Evidence From Pakistani Students
Pakistani student data supported the DASS-21 three-factor structure, but very high factor correlations raise questions about how distinct the scales are.