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Table 6 Overall fit indices from the measurement invariance tests

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 0.085
  1. aCFI comparable fit index, TLI Tucker-Lewis index, RMSEA root mean square error of approximation