Hierarchical Linear Modelling
his 2-day advanced multivariate statistics course provides an introduction to applied analyses of multilevel models. Students will learn how to use multilevel models for analyzing clustered data (e.g., persons nested in groups) and longitudinal data, such as flexible strategies for modeling change and individual differences in change. Multilevel models are known by many synonyms (hierarchical linear models, general linear mixed models). The defining feature of these models is their capacity to provide quantification and prediction of random variance due to multiple sampling dimensions (across occasions, persons, or groups). Multilevel models are useful in analyzing clustered data (e.g., persons nested in groups), in which one wishes to examine predictors pertaining to individuals or to groups. Multilevel models also offer many advantages for analyzing longitudinal data, such as flexible strategies for modeling change and individual differences in change, the possibility of examining time-invariant or time-varying predictor effects, and the use of all available complete observations. This course will serve as an applied introduction to multilevel models for both longitudinal and clustered data, as well as combinations thereof. We build upon familiar regression models and expand into multilevel regression models from that starting point.