Table 5. Results of Invariance Tests for the Revised Model.

Age Invariance	χ2	df	CFI	RMSEA	lower CI	upper CI	RMSEA p	Change in CFI	Change in RMSEA
Configural	635.931	255	0.978	0.058	0.053	0.064	0.009	-	-
Weak	733.768	291	0.974	0.059	0.053	0.064	0.003	-0.004	0.001
Strong	977.839	327	0.962	0.067	0.062	0.072	0.000	-0.012	0.008
Strict	977.839	375	0.965	0.060	0.056	0.065	0.000	0.003	-0.007
Sex Invariance	χ2	df	CFI	RMSEA	lower CI	upper CI	RMSEA p	Change in CFI	Change in RMSEA
Configural	338.317	102	0.986	0.046	0.040	0.051	0.894	-	-
Weak	351.180	111	0.986	0.044	0.039	0.050	0.963	-0.002	-0.001
Strong	398.220	120	0.984	0.046	0.041	0.051	0.912	0.002	0.002
Strict	398.220	132	0.984	0.043	0.038	0.048	0.993	-0.003	-0.003

Fit statistics for models testing age invariance are on the top half of the table; models testing sex invariance are on the bottom half of the table. The configural invariance models included all age groups or both the male and female groups in one model. The weak invariance model fixed factor loadings to be equal across all groups. The strong invariance model fixed factor loadings and item thresholds to be equal across groups. The strict invariance model fixed factor loadings, item thresholds, and unique/residual item variances to be equal across groups. Change in CFI and RMSEA were calculated for each model minus the previous model; negative change in CFI and positive change in RMSEA indicate a decrement in fit. Fit indices and change in fit indices passing criteria for good fit are in bold (CFI ≥ 0.95; RMSEA ≤ 0.06, RMSEA upper CI ≤ 0.08; RMSEA p>0.05; change in CFI ≥ -0.01; change in RMSEA ≤ 0.015).