We evaluated the effects of tact training when instruction was presented in English only compared to tact training in a bilingual format (in English and the home language, Portuguese) for a participant diagnosed with a communication disorder. The participant's parents completed a questionnaire describing his exposure to both languages prior to the…

The ability to engage in positive social interactions is an important goal for young children with developmental disabilities (DDs). Peer-mediated intervention (PMI), one category of interventions often employed with those who show social skill deficits, involves use of typical peers who live model appropriate behaviors. A second frequent category…

We evaluated a self-instructional training manual for conducting multiple-stimulus without replacement stimulus preference assessment. The manual was compared to a method description, adapted from the method sections of previous published research articles, in an unbalanced crossover design with 18 undergraduate university students, randomly…

The purpose of this study was to compare the effects of simultaneous prompting instruction with high and low treatment integrity on the learning of children with developmental disabilities. Low treatment integrity was defined as not delivering a controlling prompt during 30% of the teaching trials. Three preschool children with autism and…

This study compared the total amount of training time and total number of trial blocks for individuals with severe developmental disabilities to acquire mands under control of unconditioned establishing operations and mands under control of transitive conditioned establishing operations for manual sign and for the Picture Exchange Communication…