. Author manuscript; available in PMC: 2021 Mar 1.

Published in final edited form as: J Consult Clin Psychol. 2020 Mar;88(3):196–211. doi: 10.1037/ccp0000470

Table 2.

Fit Statistics for the Bifactor and Correlated Factors Models for Cognitive Risks and Measurement Invariance Across Age Groups⁴

Model	χ²(df)	CFI	RMSEA (90% CI)	SRMR	AIC	BIC
Bifactor Model
Early Adolescent Group	275.118(124)^*	0.924	0.076 (0.064 – 0.088)	0.059	5064.65	5283.134
All Age Groups Combined	509.650 (124)^*	0.933	0.074 (0.067 – 0.081)	0.055	13467.177	13749.757
Loadings & Intercepts Constrained Across Grade Cohorts (Scalar)	1023.935 (444)^* (3rd=365.957, 6th=307.650, 9th=350.328)	0.895	0.083 (0.076 – 0.090)	0.092	13369.612	13904.340
Loadings Constrained Across Grade Cohorts (Metric)	868.742 (416)^* (3rd=294.379, 6th=297.554, 9th=276.809)	0.918	0.076 (0.069 – 0.083)	0.080	13270.418	13926.874
Unconstrained Loadings Across Grade Cohorts (Configural)	806.982 (374)^* (3rd=271.083, 6th=275.403, 9th=260.496)	0.922	0.078(0.071 – 0.085)	0.067	13292.659	14131.705
Correlated Factors Model
Early Adolescent Group	287.540 (123)^*	0.917	0.079 (0.067 – 0.091)	0.063	5079.075	5300.921
All Age Groups Combined	527.538 (123)^*	0.930	0.076 (0.069 – 0.083)	0.057	13487.063	13773.991
Loadings & Intercepts Constrained (Scalar)	1005.175 (421)^* (3rd=365.957, 6th=307.650, 9th=350.328)	0.895	0.085 (0.079 – 0.092)	0.086	13369.612	13904.34
Loadings Constrained (Metric)	841.93 (395)^* (3rd=284.725, 6th=299.994, 9th=257.214)	0.919	0.077 (0.070 – 0.084)	0.075	13285.609	14033.36
Unconstrained Loadings (Configural)	806.731 (369)^* (3rd=270.082, 6th=287.543, 9th=248.369)	0.921	0.079 (0.072 – 0.086)	0.066	13302.407	14163.19

Note. Early adolescent group (n=213); all age groups combined (late childhood, early adolescent, late adolescent), N=571; CFI = confirmatory fit index; RMSEA = root mean square error of approximation; SRMR = standardized root mean square residual; AIC = akaike information criterion; BIC = bayesian information criterion.

p < .001