Measuring treatment fidelity is an essential step in research designed to increase the use of evidence-based practices. For parent-implemented communication interventions, measuring the implementation of the teaching and coaching provided to the parents is as critical as measuring the parents' delivery of the intervention to the child. Both levels…

The primary purpose of this study was to evaluate the generalization of mands during functional communication training (FCT) and sign language training across functional contexts (i.e., positive reinforcement, negative reinforcement). A secondary purpose was to evaluate a training procedure based on stimulus control to teach manual signs. During…

A program to involve institutional staff in developing manual sign language skills with six profoundly retarded persons was evaluated. Results indicated that all participating residents learned to communicate with signing during structured interactions on their living unit and the skills maintained during follow-up assessments ranging from 39 to…

A 15-year-old with severe handicaps who exhibited minimal intentional communicative behavior was taught to discriminately encode three classes of communicative functions. Results suggest that pragmatic discriminations can be established early in a sequence of communication intervention. The S used requesting and rejecting spontaneously in other…

The authors address several issues pertinent to designing environmentally based total communication assessment and training programs for language delayed hearing children for whom oral language training alone is inadequate. (Author/CL)

The study assessed effects of a transfer of stimulus control procedure on acquisition and cross-setting generalization of manual signs with four profoundly retarded young adults. Results showed that individuals acquired the trained signs and maintenance and generalization across settings and persons occurred but was highly variable between and…

Evaluation of a program which taught six severely mentally retarded individuals (ages 8-25) to sign interactively with each other found participants showed increased signing skills in a training play situation, generalized use of these skills in a second play situation, and maintained the trained skills over a 2 to 4 month period. (Author/DB)

Four adults with moderate/severe disabilities were taught to request objects by using the manual signs "want" or "please" plus an object label sign, within the context of familiar activities in which needed objects were missing. All participants acquired a generic requesting response, and three acquired an explicit requesting…

Verbal prompts, modeling, physical guidance, positive reinforcement, fading, and chaining procedures were used to teach two nonverbal individuals (one severely and one moderately mentally retarded) an interactive signing dialogue in a naturalistic setting. Although clients learned to use signed communication, extensive training was required and…