title: Using time-varying covariates in multilevel growth models.
abstract: This article provides an illustration of growth curve modeling within a multilevel framework. Specifically, we demonstrate coding schemes that allow the researcher to model discontinuous longitudinal data using a linear growth model in conjunction with time-varying covariates. Our focus is on developing a level-1 model that accurately reflects the shape of the growth trajectory. We demonstrate the importance of adequately modeling the shape of the level-1 growth trajectory in order to make inferences about the importance of both level-1 and level-2 predictors.
authors: Measurement, Evaluation, and Assessment Program, Educational Psychology Department, Neag School of Education, University of Connecticut Storrs, CT, USA.
authors: D Betsy
authors: DB
authors: McCoach
authors: Burcu
authors: B
authors: Kaniskan