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Vandereet, Joke; Maes, Bea; Lembrechts, Dirk; Zink, Inge – Journal of Intellectual & Developmental Disability, 2011
Background: The aim of this study was to examine the degree to which children with intellectual disability (ID) depend on manual signs during their expressive vocabulary acquisition, in relation to child and social-environmental characteristics. Method: Expressive vocabulary acquisition in speech and manual signs was monitored over a 2-year period…
Descriptors: Comprehension, Mental Retardation, Speech Language Pathology, Vocabulary Development
Vandereet, Joke; Maes, Bea; Lembrechts, Dirk; Zink, Inge – Journal of Speech, Language, and Hearing Research, 2010
Purpose: This study's objectives were to describe expressive vocabulary acquisition in children with intellectual disabilities (ID) and to examine specific pre- and early linguistic behaviors used to request and comment, chronological age, cognitive skills, and vocabulary comprehension as predictors of expressive vocabulary. Method: This study…
Descriptors: Age, Mental Retardation, Linguistics, Vocabulary Skills
Vandereet, Joke; Maes, Bea; Lembrechts, Dirk; Zink, Inge – Journal of Applied Research in Intellectual Disabilities, 2010
Background: Although high-structured elicitation tasks have been shown to be efficient means to sample communication in children with intellectual disabilities, their validity and reliability remain to be evaluated. The aims of this study were threefold: (i) to evaluate the eliciting potential, (ii) to examine the utterance forms of…
Descriptors: Mental Retardation, Children, Validity, Reliability