Group-based trajectories

Sometimes a single average trajectory doesn’t equally well describe your entire sample. In this case, it is likely that different sub-groups exist, each sub-group having its own trajectory of behaviour / attitudes over time. This is where group-based trajectory modelling comes in.

Day 6 covers the main tenets of identifying sub-groups of people with specific developmental trajectories over time and explains the difference between several major technique variations: growth mixture models, latent class growth analysis, latent profile analysis, longitudinal latent class analysis, etc. It also explains how you can use information on each person’s “profile” (i.e. trajectory group membership) to further build models that include covariates/predictors and outcomes.

Schedule:

• Session 1: Introduction to group-based trajectory modelling
• Session 2: Latent Class Growth Analysis and Growth Mixture Models
• Session 3: Group-based trajectories with covariates; Further topics
• Session 4: Recap and Quiz