Background & aims: Although the Picture Exchange Communication System (PECS) has been demonstrated to be an effective intervention to teach people diagnosed with autism spectrum disorder a functional communication system, the research indicates variability in PECS outcomes across people and studies. Therefore, the purpose of the current study…

Background: Responses to digital cognitive training interventions vary greatly among children with intellectual and developmental disorders (IDD). Investigating possible predictors of improvements following training is vital in ascertaining which individuals benefit from these interventions. Methods: Seventy-three children (4-11 years) with IDD…

Background: This study examined whether a sensory adapted dental environment (SADE) diminished anxiety and agitation in adults with intellectual and developmental disability (IDD) when compared to a routine dental environment (RDE). Method: Agitated behaviours (frequency and duration) were video-taped and anxiety-related physiological measures…

Objectives: To evaluate the effects of a program for training direct-care staff to implement an iPad®-based communication intervention with adults with developmental disability and severe communication impairment. Methods: Participants were 11 adults with developmental disability and 19 direct-care staff drawn from two day program settings.…

The PEP-R (psychoeducational profile revised) is an instrument that has been used in many countries to assess abilities and formulate treatment programs for children with autism and related developmental disorders. To the end to provide further information on the PEP-R's psychometric properties, a large sample (N = 137) of children presenting…