Dear colleagues,
It would be very helpful if someone of you could tell me, how to test configural measurement invariance in an intervention study with two groups and two measurment points.
I was wondering, if I have to compare the SEM of the first measurement with the second measurement (both groups together) or if I have to compare the SEM of the first measurment with two SEM of the second measurement (one SEM for each intervention group).
Thank you in advance!
Best regards,
Robin
See these links:
https://pubmed.ncbi.nlm.nih.gov/8063972/
https://www.researchgate.net/publication/47386957_Testing_measurement_invariance_across_groups_Applications_in_cross-cultural_research
Robin Junker, Brown's book on confirmatory factor analysis has a specific section (p. 221) entitled "Longitudinal Measurement Invariance" with a detailed example that I recommend you to have a look at.
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