An Introduction to Latent Growth Models for Developmental Data Analysis

Since the 1970s a wide range of behavioral scientists have engaged in the collection and analysis of longitudinal data (e.g., Nesselroade & Baltes, 1979). There is no doubt that the collection of longitudinal data has become frequent and often necessary. Longitudinal data have become an important ingredient in the research of individual developmental investigators and in the portfolio of national and international funding agencies (e.g., Chase-Lansdale, Mott, Brooks-Gunn, & Phillips, 1991; Young, Savola, & Phelps, 1991).