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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: Neuropsychologia. 2015 Sep 21;78:63–72. doi: 10.1016/j.neuropsychologia.2015.09.024

Table A.1.

Confirmatory factor analysis model fits indices and change in chi-square across models (relative to Model 1).

χ2 CFI RMSEA SRMR Δχ2 Δ df p-value
Hypothesized factor structure
(1) 3-factor model χ2(23) = 29.09, p = . 18 0.989 0.03 (p = .80) 0.04 - - -
Nested models
(2) 2-factors (vsEM = vEM) χ2(25) = 48.46, p = .003 0.959 0.06 (p =.24) 0.05 19.37 2 < .001
(3) 2-factors (vsEM = WM) χ2(25) = 42.92, p = .01 0.969 0.05 (p =.41) 0.04 13.83 2 0.001
(4) 2-factors (vEM = WM) χ2(25) = 37.48, p = .052 0.978 0.04 (p =.62) 0.05 8.39 2 0.02
(5) 1-factor χ2(26) = 54.12, p = .001 0.951 0.06 (p =.16) 0.05 25.03 3 < .001

CFI = comparative fit index. RMSEA = root mean square error of approximation. SRMR = standardized root-mean-square residual, df = degrees of freedom. WM = working memory. vEM = verbal episodic memory. vsEM = visuospatial episodic memory.