Children who are deaf and hard of hearing (DHH) often demonstrate pragmatic language difficulties which can impact academic and social outcomes. This randomized control trial for DHH children, ages 3-12 years, explored the Technology-Assisted Language Intervention (TALI), incorporating augmentative and alternative communication technology (AAC)…

Augmentative and alternative communication (AAC) has been used by patients with acquired expressive communication disorders as an alternative to natural speech. The use of symbols to express pain, which is intangible, is challenging because designing a series of comprehensible symbols to represent personal experiences such as pain is not…

Children with intellectual disabilities experience well-documented challenges in the development of problem-solving, particularly related to mathematical word-problem solving. Such challenges are related to both linguistic and conceptual skills. While interventions to assist children in developing conceptual skills are well reported, linguistic…

Individuals with autism spectrum disorders (ASD) and complex communication needs often rely on augmentative and alternative communication (AAC) as a means of functional communication. This meta-analysis investigated how individual characteristics moderate effectiveness of three types of aided AAC: the Picture Exchange Communication System (PECS),…

Autism is currently one of the most prominent and widely discussed human conditions. Its increased prevalence has intensified the demand for effective educational and therapeutic services, and intervention science is providing mounting evidence about practices that positively impact outcomes. The purpose of this report is to describe a set of…

The "Picture Exchange Communication System" (PECS) has emerged as the augmentative communication intervention of choice for individuals with autism spectrum disorder (ASD), with a supporting body of single-participant studies. This report describes a meta-analysis of 16 single-participant studies on PECS with percentage of nonoverlapping data…

The primary purpose of this study was to establish whether contrasting teaching methods had an effect on performance accuracy in the recall of graphic symbols. The secondary purpose was to establish whether the iconicity of symbols had an effect on performance accuracy. A direct symbol-teaching method and a contextual symbol-teaching method were…