Sharing a classroom environment with other victimized peers has been shown to mitigate the adverse effects of peer victimization on children's social and psychological adjustment. By extension, this study hypothesized that classroom reductions in the proportion of victims would be harmful for children who remain victimized. Data were collected at…

This study presents a new approach to estimation of a nonlinear growth curve component with fixed and random effects in multilevel modeling. This approach can be used to estimate change in longitudinal data, such as day-of-the-week fluctuation. The motivation of the new approach is to avoid spurious estimates in a random coefficient regression…