Manifest discrete time and latent Markov chain models are described, and the results given by each are compared for the re-analysis of a three-wave table of repeated behavior ratings of children. More recent developments in latent discrete time Markov chain modeling address the problems of the table more efficiently. (SLD)

Several Federal programs and initiatives are underway to reduce crime and violence in the schools. In connection with these efforts, Congress had passed legislation requiring the National Center for Education Statistics to collect data about the seriousness and incidence of violence in elementary and secondary schools. This report presents an…