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Table 2 Latent growth model fit statistics and chi-square difference test for Dementia Rating Scale

From: Clinical dementia severity associated with ventricular size is differentially moderated by cognitive reserve in men and women

Model \( {\chi}_M^2 \)(dfM) CFI RMSEA (90% CI) SRMR \( {\chi}_D^2 \) (dfD)
Fixed intercept 587.826(5)** 0.000 0.409 (0.381–0.437) 0.801
Random intercept 264.295(4)** 0.535 0.306 (0.275–0.337) 0.577 323.531(1)**
Random intercept, fixed slope 76.559(3)** 0.869 0.188 (0.153–0.225) 0.402 187.736(1)**
Random intercept, random slope 0.967(1) 1.000 0.000 (0.000–0.099) 0.033 75.592(2)**
Random intercept, random slope, fixed quadratic 0.000(0)** 1.000 0.000 (0.000–0.000) 0.000 0.967(1)
Random intercept, random slope, random quadratic No convergence
  1. \( {\chi}_M^2 \) Chi-square test of model fit, dfM Degrees of freedom for model fit, RMSEA Root mean square error of approximation, CFI Comparative fix index, SRMR Standardized root mean square residual, \( {\chi}_D^2 \) Chi-square test of difference, dfD Degrees of freedom for chi-square difference test
  2. **p < 0.001