The purpose of this study was to evaluate the effectiveness of using picture activity schedule books to increase on-schedule and on-task behaviors of children with moderate intellectual disabilities. Four students enrolled in a self-contained classroom participated in the study. Graduated guidance, system of least prompts, and verbal prompting…

Research is reviewed that employs delay procedures with the severely handicapped as a means of shifting stimulus control. The parameters of delay procedures are delineated, including prerequisite student and teacher considerations, types of responses, levels of delay, single versus blocked trials, and basic delay methodology. (Author)

To explore training with multiple exemplars, six severely retarded students (ages 5-21) were taught signed labels for categories of natural objects using either three or five good examples. The arithmetic difference between the two conditions indicated higher levels of generalization following training with five examples for five of the six…

Stimulus discrimination is a standard subject in undergraduate courses presenting basic principles of learning, and a particularly interesting aspect of discrimination is the peak shift phenomenon. Peak shift occurs in generalization tests following intradimensional discrimination training as a displacement of peak responding away from the S+ (a…