This response to a paper (EC 624 771) on the early development of stereotyped and self-injurious behavior in infants and young children considers reasons why such behaviors are maintained in some individuals. The use of functional behavioral assessment suggests these behaviors are influenced by environmental factors including attention, escape, or…

This article reviews the development of functional analysis in understanding behavior problems like self-injury and aggression and, more recently, school-based problems. Seen as particularly promising is current work on the analysis of setting events and analysis of dependent variables by considering the effects of intervention on response…