Analyzing problem-behavior trajectories can be difficult. The data are generally categorical and often quite skewed, violating distributional assumptions of standard normal-theory statistical models. In this article, the authors present several currently available modeling options, all of which make appropriate distributional assumptions for the…

The influence of method of handling missing data on estimates produced by a structural equation model of the effects of part-time work on high-school student achievement was investigated. Missing data methods studied were listwise deletion, pairwise deletion, the expectation maximization (EM) algorithm, regression, and response pattern. The 26…

Data from the National Youth Study of 1976 are analyzed to explore the relations between conventional beliefs and attitudes and delinquent behavior. Using a stage-state analysis in addition to structural-equation models reveals aspects of the relation that are not apparent from structural equations alone. (SLD)