From: The General Health Questionnaire-28 (GHQ-28) as an outcome measurement in a randomized controlled trial in a Norwegian stroke population
Measurement invariance modela
χ2(df)
CFI
TLI
RMSEA
Configural
2143.235 (688) p < 0.001
0.779
0.757
0.086
Metric
2176.377 (716) p < 0.001
0.778
0.766
0.085
Scalar
2262.083 (740) p < 0.001
0.769
0.764