Children with disabilities play less often and demonstrate fewer varied pretend play behaviors than children with typical development. A multiple-probe design was used to examine the relation between teachers' use of the system of least prompts and contingent imitation and the acquisition, maintenance, and generalization of pretend play and…

Speaker immersion is a tactic that uses multiple establishing operations to increase speaker behavior for individuals with limited mand and tact repertoires. The purpose of this paper was to evaluate the effects of speaker immersion on the number of independent mands, tacts, and autoclitics emitted by young children with verbal delays. In the…

The effects of teaching mothers to imitate their young children during play sessions were studied with children (18 to 36 months old) who exhibited developmental delays in cognition, gross/fine motor skills, speech/language, self-help, and social skills. Mothers were taught to imitate, through providing a description of verbal and nonverbal…