Researchers and clinicians have recommended that sign language be taught to typically developing children during their first 2 years of life; however, existing research does not provide adequate information regarding appropriate methods of sign training. We used delayed physical prompting and reinforcement to teach manual signs to 3 children…

Four nonverbal autistic boys (ages 11-16) were successfully taught sign language action-object phrases following an intervention composed of prompting, fading, stimulus rotation, and differential reinforcement. The skill generalized to new situations. (Author/DB)