The current study compared the use of serial and concurrent methods to train multiple exemplars when teaching receptive language skills, providing a systematic replication of Wunderlich, Vollmer, Donaldson, and Phillips (2014). Five preschoolers diagnosed with developmental delays or autism spectrum disorders were taught to receptively identify…

Procedures are proposed for increasing the accuracy of generalization assessment in applied behavior analysis with behavior problem populations by accounting for the degree of natural covariation between treated and untreated behaviors. (Author/DB)

A professional development project was designed to support teachers in planning communication interventions with students having moderate/severe mental retardation. Special emphasis was on systemic and personal factors in adopting change and on training activities to foster application of skills. A program evaluation instrument focusing on teacher…

This guide presents strategies to teach students with mental retardation to request their preferences, protest non-preferred activities, and clarify misunderstandings. The strategies were field tested with more than 200 children and adults in community, residential, vocational, and educational settings. Suggestions are included for instructing…

An augmentative and alternative communication device was designed for a nonspeaking, blind, severely mentally retarded 11-year-old. The device consisted of a computer-supported expanded keyboard that produced synthetic speech output when tactile symbols were activated. Described are the assessment procedures, instructional procedures, and…