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Eells, Elizabeth Howard; Dodder, Richard A.; Stinnett, Tessa – Education and Training in Mental Retardation and Developmental Disabilities, 2000
This study assessed the criterion validity of the photographic adaptive communication device (ACD) used in Oklahoma to interview individuals with developmental disabilities receiving services. The back-translation process identified photographs that were frequently incorrectly identified resulting in revision of the ACD for greater validity.…
Descriptors: Augmentative and Alternative Communication, Developmental Disabilities, Interviews, Photography