Figure 1.

Graphical representation of the studied two-phase mixture model. On the measurement model, U₁, U₂, U₃, and U₄ represent four dichotomous outcome variables related to latent class variable c. On the auxiliary model, y₁, y₂, y₃, and y₄ represent repeatedly measured outcome variable at four time points. Also, I represents the growth intercept, S represents the growth slope, and ϵ represent the residuals. Black dots indicate that parameters represented by these arrows are different between latent classes.