A Longitudinal Study of the Reduction of Challenging Behavior through Early Intensive and Comprehensive Applied Behavior Analysis

This study investigated the longitudinal outcome of early intensive behavior intervention (EIBI) on the reduction of challenging behaviors across 20 children with autism spectrum disorder. Participants were 2-6 years of age at the onset of the evaluation and had received ABA therapy for an average of 27 months (range 14-37 months). Frequency of episodes of challenging behavior, including aggression, elopement, property destruction and self-injury, were collected during the start of intervention and at the termination of treatment or their most recent 3 months of care.