50 likes | 269 Views
Multitrait-Multimethod Validity. SEM permitted potential analytical methods: Use CFA (Alwin, Joreskog, etc) see Corten et al for references Alternate models developed: Additive models: CU model with COV( ij I’j) =a j Multiplicative models: CU.
E N D
Multitrait-Multimethod Validity • SEM permitted potential analytical methods: • Use CFA (Alwin, Joreskog, etc) see Corten et al for references • Alternate models developed: • Additive models: CU model with COV(ijI’j) =aj • Multiplicative models: CU
MULTITRAIT-MULTIMETHOD MODELING: CORRELATED TRAIT-CORRELATED METHOD MODEL (CT-CM) X11 T1 M1 X12 X21 T2 M2 X22 Not estimable without restrictions
MULTITRAIT-MULTIMETHOD MODELING: CORRELATED UNIQUENESS METHOD MODEL (CU) e11 X11 T1 e12 X12 e21 X21 T2 e22 X22 Not estimable without restrictions
RECOMMENDATIONS • CTCM (Corten et al) followed by CU if CTCM does not converge • Theoretically specificed CTCM or CU