Latent Trajectory Studies: The basics, how to interpret the results and what to report

To ease the use of LGMM/LCGA step-by-step in this symposium guidelines are presented which can be used for researchers applying the methods to longitudinal data, for example the development of PTSD after trauma . The guidelines include how to use the software Mplus  to run the set of models needed to answer the research question: how many latent classes exist in the data? The next step described in the guidelines is how to add covariates/predictors to predict class membership using the three-step approach. Lastly, it is described what the essentials are to report in the paper.

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