A Review of: Growing Up With Autism: Working With School-Age Children and Adolescents With Autism,edited by Robin L. Gabriels and Dina E. Hill (Eds.).

The influence of adult presence, peer smiling, and peer praise on the unprogrammed generalization of physical sharing over time was investigated. During free play three groups of five preschool children were taught to share toys via a behavioral training package composed of instructions, modeling, behavior rehearsal, prompts, and praise. Immediately following free play the children were given art materials and observed in the presence of different adults. An ABA design with a manipulation of adult presence nested within east phase was used. For all three groups, regardless of the adult presence manipulation, treatment facilitated sharing in both settings. In addition, two groups continued to share in both settings after termination of the training. The presence of an adult was necessary for unprogrammed maintenance of treatment gains in both settings whereas peer smiling and peer praise were not. Observer presence suppressed physical sharing and smiling prior to, during, and after treatment. Implications for behavioral assessment and applied significance are discussed.