Purpose: Today, an ever-increasing number of technological advancements are becoming mainstream. As the availability of technological innovations increases, so do opportunities for evaluating any benefits of those innovations in augmentative and alternative communication (AAC) research for individuals with developmental disabilities. One…

Establishing evidence- and research-based practices relies upon research synthesis of individual studies in reviews and meta analyses. Further summarizing scientific evidence about a specific topic by synthesizing reviews is an area of need to determine practices that have a strong evidence base and to identify areas of methodological weakness and…

Children with developmental disabilities and complex communication needs who use augmentative and alternative communication (AAC) have limited opportunities to communicate and few trained conversation partners to interact with. Research literature on interventions utilizing AAC devices and systems to increase communication skills overwhelmingly…

A systematic review was conducted to analyze the scope and breadth of the existing training protocols for establishing social and communicative behavior using high-tech, touchscreen devices. This review aimed to determine the degree to which studies evaluating high-tech communication aides have established procedures to extend, or completely…

Purpose. This quantitative study examined parent perceptions regarding augmentative and alternative communication (AAC) interventions for their children with autism to determine if, according to parent perceptions, a relationship existed between AAC and functional communication. Those faced with cognitive and developmental delays like autism face…

Powerful, portable, off-the-shelf handheld devices, such as tablet based computers (i.e., iPad®; Galaxy®) or portable multimedia players (i.e., iPod®), can be adapted to function as speech generating devices for individuals with autism spectrum disorders or related developmental disabilities. This paper reviews the research in this new and rapidly…

Meaningfully synthesizing single case experimental data from intervention studies comprised of individuals with low incidence conditions and generating effect size estimates remains challenging. Seven effect size metrics were compared for single case design (SCD) data focused on teaching speech generating device use to individuals with…

This study aimed to contribute to the secondary-tier evidence of the three-tier video modeling intervention model (3TVM), using a group-based generic video, and to explore a new form of augmentative and alternative communication (AAC) intervention using a Chinese-language interface for teaching children with developmental disabilities. A multiple…

The Picture Exchange Communication System (PECS) is a picture-based alternative communication method that is widely accepted and utilized with individuals with disabilities. Although prior studies have examined the clinical efficacy of PECS, none have experimentally evaluated its manualized training structure. We experimentally evaluated the…

Anecdotal reports suggest that individuals with developmental disabilities who lack speech may be enabled to communicate through the use of a new iPod-based communication device. However, there appear to be limited empirical data demonstrating successful use of this new device by such individuals. This study was designed to provide empirical…

A phonics-based reading curriculum in which students used an iPad to respond was created for students with developmental disabilities not able to verbally participate in traditional phonics instruction due to their use of augmentative and assistive communication. Time delay and a system of least prompts used in conjunction with text-to-speech…

The purpose of this study was to evaluate the feasibility of teaching an integrated requesting-rejecting sequence. Four children with developmental disabilities were taught to request missing items and reject wrong items using either speech-generating devices (SGD) or picture-exchange (PE) communication. Data showed that the introduction of the…

According to the "Diagnostic and Statistical Manual of Mental Disorders" (DSM-IV-TR; American Psychiatric Association, APA, 2000), autism is a neurodevelopmental disorder that is characterized by impairments in social and communicative behaviors with great variations in ability, depending on developmental level, intelligence, and chronological…

This study evaluated whether two persons with developmental disabilities would be able to improve their pointing performance through a Dual Cursor Automatic Pointing Assistive Program (DCAPAP) with a newly developed mouse driver (i.e., a new mouse driver replaces standard mouse driver, and is able to intercept/detect mouse movement action). First,…

Many individuals with autism cannot speak or cannot speak intelligibly. A variety of aided augmentative and alternative communication (AAC) approaches have been investigated. Most of the research on these approaches has been single-case research, with small numbers of participants. The purpose of this investigation was to meta-analyze the single…