Introduction: This paper aims to identify to what extent staff training interventions are successful in enhancing the development of communication skills in people with profound intellectual and multiple disabilities. Methods: A systematic review was undertaken, conforming to PRISMA guidelines. English language, peer reviewed, empirical studies of…

Background: Modifying intensity is one approach to tailoring intervention to meet the needs of learners with developmental disabilities. This study examined the effects of varying intensity levels of a behaviour analytic intervention on the efficiency of acquisition and task persistence in young children with Down syndrome. Methods: Using adapted…