While bivariate associations between motivation and academic achievement have been soundly established, only a few studies have documented evidence for its incremental predictive role above and beyond other student features related to student achievement, such as intelligence and personality. Moreover, it is not yet clear which motivational…

This study focuses on companionship, intimacy, and support of reciprocated friendships of students with autism spectrum disorders (ASD), students with motor and/or sensory disabilities, and typically developing students with their classmates at the start of mainstream secondary school. The study included 1379 typically developing students, 65…