Assessing internal validity of a LCGA... PreviousNext
Mplus Discussion > Growth Modeling of Longitudinal Data >
 Leticia Deveza posted on Wednesday, May 30, 2018 - 7:07 pm
Dear Muthen and team,
I have used two substudies within a large longitudinal cohort to derive trajectories using the LCGA. To assess whether the results were robust, I subsequently repeated the same analysis in each one of the two studies separately. I was asked to provide the confusion matrix of study A vs B classes to support that my main results were robust. The information I have got was to use the study A-LCGA classifier to group the trajectories of the study B.
That was not very clear to me and I could not find any additional information to help me with how to do that in Mplus. Your advice would be greatly appreciated.
 Tihomir Asparouhov posted on Friday, June 01, 2018 - 7:31 pm
I would recommend looking at the classifications for each individual: study A v.s. study (A&B) and study B v.s study (A&B). You can use the most likely class or the posterior membership probability.
Back to top
Add Your Message Here
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Options: Enable HTML code in message
Automatically activate URLs in message