Table 3. Fit Statistics for Estimated CFA and MIMIC Models for DPS Items (N = 4,491).
WLSMVχ2 | df | CFI | RMSEA (90% CI) | WRMR | |
---|---|---|---|---|---|
Confirmatory factor analysis (CFA) models | |||||
M1: Null model | 24821.85 | 325 | .130 [.128, .131] | 14.298 | |
M2: One-factor CFA model | 2304.38 | 299 | .918 | .039 [.037, .040] | 3.254 |
M3: Three-factor CFA modela | 1329.33 | 296 | .958 | .028 [.026, .029] | 2.370 |
Multiple indicators multiple causes (MIMIC) models | |||||
M4: Baseline three-factor MIMIC model (without DIF)b | 1723.11 | 365 | .942 | .029 [.027, .030] | 2.520 |
M5: Final three-factor MIMIC model (with DIF)c | 1285.59 | 344 | .960 | .025 [.023, .026] | 2.112 |
Note. All models were adjusted for sample weights and clustering. The estimated tetrachoric correlations among the 26 latent continuous response variables y* ranged from .18 to .82 according to the three-factor CFA model. WLSMVχ2 = robust weighted least squares chi-square test statistic; CFI = comparative fit index; RMSEA = root mean squared error of approximation; WRMR = weighted root mean square residual; DIF = differential item functioning; CI = confidence interval.
Model fit and substantive findings were nearly identical when the three-factor CFA model was re-estimated using data from only the female primary caregivers (N = 4,153, WLSMVχ2(296) = 1275.24, CFI = .955, RMSEA = .028, RMSEA 90% CI = .027, .030, WRMR = 2.313) and from only the English-language version (N = 3,400, WLSMVχ2(296) = 1132.53, CFI = .955, RMSEA = .029, RMSEA 90% CI = .027, .031, WRMR = 2.240), respectively.
Model fit and substantive findings were nearly identical when the baseline three-factor MIMIC model was re-estimated using data from only the female primary caregivers (N = 4,153, WLSMVχ2(365) = 1659.56, CFI = .938, RMSEA = .029, RMSEA 90% CI = .028, .031, WRMR = 2.454). Model fit and the vast majority of substantive findings also were closely replicated when this model was re-estimated using data from only the English-language version (N = 3,400, WLSMVχ2(365) = 1418.24, CFI = .942, RMSEA = .029, RMSEA 90% CI = .028, .031, WRMR = 2.315).
Model fit and substantive findings were nearly identical when the final three-factor MIMIC model was re-estimated using data from only the female primary caregivers (N = 4,153, WLSMVχ2(344) = 1244.28, CFI = .957, RMSEA = ..025, RMSEA 90% CI = .024, .027, WRMR = 2.061). Model fit and the vast majority of substantive findings also were closely replicated when this model was re-estimated using data from only the English-language version (N = 3,400, WLSMVχ2(344) = 1130.89, CFI = .957, RMSEA = .026, RMSEA 90% CI = .024, .028, WRMR = 2.015).