My question involves a MIMIC model where I intend to compare a baseline LGM to an LGM nested within it (wherein intercept and slope paths are freed) using the traditional Chi-square difference test. My (abbreviated) syntax is included below:
NESTED MODEL: GROUPING IS PRCATO15_2cat (1 = secure 2 = insecure); MODEL: I S | STANXX1F@0STANXXG3@.25STANXXG5@.5STANXXG6@.6STANXXX5@1; I S on L08X5MEAN_R; STANXX1F STANXXG3 STANXXG5 STANXXG6 STANXXX5(1); MODEL secure: I S on L08X5MEAN_R; OUTPUT: SAMPSTAT; STANDARDIZED;
When I run this syntax, the degrees of freedom between the baseline and nested models are identical. How is this possible if I'm specifying the freeing of I S on L08X5MEAN_R; for the secure group? I appreciate any help you can provide.