Table 7 Measurement invariance testing with two-group confirmatory factor analysis
From: Anticipated reactions to learning Alzheimer’s disease biomarker results
χ2 test | Model fit | Model comparison | ||||||
|---|---|---|---|---|---|---|---|---|
χ2 | df | p value | CFI | RMSEA (90% CI) | SRMR | ∆CFI | ||
Behavior Change Scale | ||||||||
1.Configural | 209.276 | 144 | < 0.001 | 0.967 | 0.059 (0.040, 0.076) | 0.049 | ||
2.Metric | 231.597 | 158 | < 0.001 | 0.963 | 0.060 (0.043, 0.076) | 0.062 | 1 vs 2 | 0.004 |
3.Scalar | 262.033 | 170 | < 0.001 | 0.954 | 0.064 (0.048, 0.079) | 0.067 | 2 vs 3 | 0.009 |
Psychological Impact Scale | ||||||||
1.Configural | 204.775 | 138 | < 0.001 | 0.970 | 0.056 (0.039, 0.072) | 0.052 | ||
2. Metric | 212.912 | 149 | < 0.001 | 0.971 | 0.053 (0.036, 0.068) | 0.057 | 1 vs 2 | -0.001 |
3. Scalar | 248.344 | 160 | < 0.001 | 0.961 | 0.060 (0.045, 0.074) | 0.063 | 2 vs 3 | 0.010 |