Objective: This study seeks to evaluate the psychometric properties of the Ottawa Self-Injury Inventory-Functions (OSI-F) for assessing nonsuicidal self-injury (NSSI), a condition for further study in the DSM-5. Participants: Participants included 345 students who indicated a history of self-injury in a university counseling center over six…

Teachers' interpersonal style is a new field of research in the study of students with intellectual disabilities and challenging behaviors in school context. In the present study, we investigate emotions and causal attributions of three basic types of challenging behaviors: aggression, stereotypy, and self-injury, in relation to teachers'…

Adults with predominantly severe and profound mental retardation (N = 180) who lived in a developmental center were assessed with the Behavior Problems Inventory and the Diagnostic Assessment for the Severely Handicapped-II. Individuals with self-injurious, stereotyped, or aggressive/destructive behavior had generally higher psychopathology scores…