This video shows you how to use the new Mplus feature to conduct Longitudinal Measurement Invariance with a single new command! As of Version 8.8 we can use the MODEL = CONFIGURAL METRIC SCALAR command to estimate measurement invariance of a measurement model over time.
For a theoretical explanation of Measurement Invariance, refer to this video:
ua-cam.com/video/pqYCWOsAU4Q/v-deo.html
Here is the Syntax used in the example
ANALYSIS:
!Indicate you want to estimate Measurement Invariance
MODEL = CONFIGURAL METRIC SCALAR;
MODEL:
!Specify Measurement Model at Time 1 (Model T1)
MODEL T1: TASK_T1 by M1TAP_3 M1TAP_4 M1TAP_5 M1TAP_6 ;
!Specify Measurement Model at Time 2 (Model T2)
MODEL T2: TASK_T2 by M2TAP_3 M2TAP_4 M2TAP_5 M2TAP_6 ;
=====Contents of this video=====
0:00 - Introduction and Explanation of New Command
03:08 - Mplus Output
07:08 - Longitudinal Invariance Model Comparisons