Previous research on sensation seeking (SS) was dominated by a variable-oriented approach indicating that SS level has a linear relation with a host of problem behaviors. Our aim was to provide a person-oriented methodology--a probabilistic clustering--that enables examination of both inter- and intra-individual differences in not only the level,…

Although many adolescents participate in sports and other types of organized activities, little extant research explores how youth development outcomes may vary for youth involved in different combinations of activities. The present study uses the Child Development Supplement of the Panel Study of Income Dynamics, a large, nationally…

Makes the case that hierarchical linear models or longitudinal multilevel models are a better alternative than standard regression models for empirical tests of predictive developmental hypotheses. Describes a multivariate longitudinal model linking developmental data to a criterion and presents an example from a study of the prediction of infant…

Related variables measured in 1975 to smoking status in 1978 using multivariate statistical procedures. Variables included sociodemographic characteristics, smoking environment, school performance, attitude toward smoking, and knowledge about smoking effects. Cross-sectional analysis of variables measured in 1978 revealed that six variables…

At-risk students are defined as those who are in danger of not graduating from school. These potential dropouts can be characterized by a variety of factors that lead to educational underachievement. In this study, the outcome explored is "outcast," a combination of student behavioral factors that captures student alienation from school…