Authors: Yoder PJ, Lieberman RG
Title: Brief Report: Randomized test of the efficacy of picture exchange communication system on highly generalized picture exchanges in children with ASD
Source: Journal of Autism and Developmental Disorders 2010 40(5): 629-632
Year: 2010
Research Design: Randomised Controlled Trial
Rating Score: 06/10
This rating is confirmed
Eligibility specified - N
Random allocation - Y
Concealed allocation - N
Baseline comparability - Y
Blind subjects - N
Blind therapists - N
Blind assessors - Y
Adequate follow-up - Y
Intention-to-treat analysis - N
Between-group comparisons - Y
Point estimates and variability - Y

A randomized control trial comparing two social-communication interventions in young children with autism examined far-transfer of the use of picture exchange to communicate. Thirty-six children were randomly assigned to one of two treatment conditions, one of which was the Picture Exchange Communication System (PECS). All children had access to picture symbols during assessments. Post-treatment measurement of the number of picture exchanges in a far-transfer, assessment context favored the PECS intervention. These findings were interpreted as support for the hypothesis that the PECS curriculum can successfully teach a generalized means of showing coordinated attention to object and person without requiring eye contact to children with ASD. ©Springer

Access: Paywall