Three adolescents with severe mental retardation were trained to request snacks from visible three-item snack sets. During subsequent stimulus control assessment sessions, one subject requested food items when no food items were present, two frequently requested a missing item when the two other items were visible, and all subjects requested…

A cues-pause-point procedure was used to train two severely retarded females to remain quiet before, during, and briefly after the presentation of questions and then to verbalize on the basis of environmental cues whose labels represented the correct responses. Echolalia was rapidly replaced by correct responding on the trained stimuli. (Author/JW)

Parents of four nonverbal and four echolalic autistic children, aged five-nine, were trained to increase their children's speech by using the Natural Language Paradigm. Following training, parents increased the frequency with which they required their children to speak, and children increased the frequency of their verbalizations in three…