Abstract

As the field's ability to detect autism spectrum disorders (ASD) at an early age advances, the need for evidencebased information for early intervention continues to grow. This review of the ASA early intervention (EI) literature focuses on efficacy studies published in the last 15 years. We discuss neurodevelopmental status of early intervention,timing of intervention initiation, primary intervention approach, and predictors of treatment outcome. Evidence suggests that when an infant with ASD benefits from her EI and the parent is offered a coaching intervention, the parent learns to implement appropriate engagement strategies for the child.