Background: Pivotal response treatment (PRT) is suggested to be an effective treatment for children with autism spectrum disorder (ASD). Objectives: We aimed to compile evidence examining the effectiveness of PRT on social communication, social interaction, and repetitive behavior for children with ASD. Methods: We performed a systematic and…

A growing body of evidence points to the common co-occurrence of language and behavioral difficulties in children. Primary studies often focus on this relation in children with identified deficits. However, it is unknown whether this relation holds across other children at risk or representative samples of children or over time. The purpose of…

Naturalistic developmental behavioral intervention is an emerging class of interventions for young children with autism spectrum disorder. The present article is a meta-analysis of outcomes of group-design studies (n = 27) testing interventions using naturalistic developmental behavioral intervention strategies. Small, significant positive effects…

The maladaptive behaviors, personality, and language skills of a male whose chromosome analysis showed evidence of mosaicism with karyotype 49,XXXXY and 48,XXXY are described. Research on severity of mental handicap with extra chromosomes, delayed speech development, and discrepancy between verbal and performance intelligence is examined. (JDD)

This article highlights the fact that to date, emphasis has been upon promotion of the expressive communication skills of a person with a learning disability and challenging behavior. It is suggested that practitioners need to pay closer attention to the neglected and largely unmet need of receptive communication difficulties. (Contains…