This study investigated parent and teacher ratings of behavior problems in children with and without intellectual disabilities at three time points over the course of 9 years. The group of children with intellectual disabilities (IDs) had higher behavior problem ratings than the group of children with no IDs (NIDs) across the three time points.…

The authors identified trajectories of teacher-child relationship conflict and closeness from Grades 1 to 6, and associations between these trajectories and externalizing and internalizing behaviors at 11 years old among low-income, urban boys (N = 262). There were three main findings. Nagin cluster analyses indicated five trajectories for…