Differential reinforcement of alternative behavior (DRA) is a common strategy for escape-maintained behaviors targeted for reduction (i.e., targeted behavior) exhibited by youth with intellectual and developmental disabilities. DRA often involves various methods of prompting to ensure the instruction or task remains in place until contingencies…

Many autistic children require support to meet their learning needs. Given the heterogeneity within the autism spectrum it is plausible that different types of support might be better suited to different children. However, knowledge on what interventions work best for which children is limited. We examined the outcomes of autistic preschool-aged…

Purpose: The current study examined the predictive role of gestures and gesture-speech combinations on later spoken language outcomes in minimally verbal (MV) autistic children enrolled in a blended naturalistic developmental/behavioral intervention (Joint Attention, Symbolic Play, Engagement, and Regulation [JASPER] + Enhanced Milieu Teaching…

Younger siblings of autistic children are at a high likelihood (HL) of autism, language, and/or cognitive delays. Vocal complexity, a continuous measure of the developmental maturity of vocal communication, is facilitated by parent-child interaction and predicts language outcomes. This study examined whether parents' intervention fidelity to…

The publicly funded early intervention program for preschoolers with autism spectrum disorder (ASD) in Nova Scotia, Canada, uses the pivotal response treatment (PRT) model. Parents are coached in use of PRT strategies during their children's first week of treatment. We explored whether parents of older preschoolers with limited verbal ability…

Individuals who are dually diagnosed with Down Syndrome (DS) and autism spectrum disorders (ASD) frequently engage in vocal stereotypy that can interfere with learning, impede socially appropriate behavior, and disrupt others. Response interruption and redirection (RIRD) is an intervention that blocks and redirects stereotypy to reduce behavior.…

We examined adult behavioral skills training (BST) for home-based therapeutic support staff (TSS) using a naturalistic developmental behavioral intervention (NDBI) with young children with Autism Spectrum Disorder (ASD) derived from Project ImPACT. We taught three TSS to use interactive strategies with online modules, in-vivo training, and ongoing…

Naturalistic developmental behavioral interventions (NDBI) have been shown to facilitate the development of spontaneous language in individuals with speech and language impairment. Several meta-analyses have reported a small number of studies that utilized naturalistic teaching approaches combined with augmentative and alternative communication…