An investigation of incidental teaching practices on the spontaneous speech of 12 disadvantaged preschool children during free-play periods which demonstrated that such periods can be powerful learning times by capitalizing on moments when children seek new plan materials. (Author/EH)

The effects of expressive modeling experiences on the observational learning of generative language by children with severe mental retardation was investigated. All six children (aged six-nine) demonstrated observational learning of responses modeled by their peers. Organizing the modeling experiences according to matrix-training principles…

A six-year-old nonvocal girl with autism who had acquired a variety of signs and imitative responses consistently failed to acquire a tact (labeling) repertoire. When procedures to transfer stimulus control from verbal to nonverbal stimuli were implemented, the subject quickly learned to tact all 18 target stimuli. (Author/DB)

Three mentally handicapped students (aged 13, 36, and 40) with maladaptive speech received training to answer questions with verbal labels. The results of their cues-pause-point training showed that the students replaced their maladaptive speech with correct labels (answers) to questions in the training setting and three generalization settings.…