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Direct linkKang, Soyeon; O'Reilly, Mark; Lancioni, Giulio; Falcomata, Terry S.; Sigafoos, Jeff; Xu, Ziwei – Research in Developmental Disabilities: A Multidisciplinary Journal, 2013
We reviewed 14 experimental studies comparing different preference assessments for individuals with developmental disabilities that were published in peer-reviewed journals between 1985 and 2012. Studies were summarized based on the following six variables: (a) the number of participants, (b) the type of disability, (c) the number and type of…
Descriptors: Developmental Disabilities, Stimuli, Predictive Validity, Journal Articles
Lancioni, Giulio E.; O'Reilly, Mark F.; Cuvo, Anthony J.; Singh, Nirbhay N.; Sigafoos, Jeff; Didden, Robert – Research in Developmental Disabilities: A Multidisciplinary Journal, 2007
This paper provides an overview of the literature dealing with the use of the Picture Exchange Communication System (PECS) and voice output communication aids (VOCAs) for promoting the performance of requests by students with developmental disabilities. Computerized and manual searches were carried out to identify the studies published during the…
Descriptors: Assistive Technology, Developmental Disabilities, Augmentative and Alternative Communication, Comparative Analysis
Schlosser, Ralf W.; Sigafoos, Jeff – Research in Developmental Disabilities: A Multidisciplinary Journal, 2006
Augmentative and alternative communication (AAC) as an area of clinical and educational practice involves a myriad of decisions related to the symbols, devices, and strategies from which each client must choose. These decision-making points can be productively informed through evidence from comparative intervention studies. The purpose of this…
Descriptors: Intervention, Developmental Disabilities, Augmentative and Alternative Communication, Comparative Analysis
