Predicting Language Outcomes for Children Learning Augmentative and Alternative Communication: Child and Environmental Factors.

Purpose: To investigate a model of language development for nonverbal preschool-age children learning to communicate with augmentative or alternative communication. Method: Ninety-three preschool children with intellectual disabilities were assessed at Time 1, and 82 of these children were assessed...

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Publicado en:Journal of Speech, Language & Hearing Research Vol. 56; no. 5; pp. 1595 - 1613
Autores principales: Brady, Nancy C., Thiemann-Bourque, Kathy, Fleming, Kandace, Matthews, Kris
Formato: Artículo
Publicado: American Speech-Language-Hearing Association Oct2013
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Acceso en línea:Ver este registro en EBSCOhost
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      dt: Oct2013
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      pub: American Speech-Language-Hearing Association
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        10.1044/1092-4388(2013/12-0102)
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        atl: Predicting Language Outcomes for Children Learning Augmentative and Alternative Communication: Child and Environmental Factors.
      aug:
        au:
          Brady, Nancy C.
          Thiemann-Bourque, Kathy
          Fleming, Kandace
          Matthews, Kris
        affil: University of Kansas
      su:
        Kansas
        Cognition
        Facilitated communication
        Language acquisition
        Learning
        Intellectual disabilities
        Children
        Confidence intervals
        Factor analysis
        Research funding
        Speech evaluation
        Statistics
        Video recording
        Structural equation modeling
        Inter-observer reliability
        Descriptive statistics
      sug:
        subj:
          Cognition
          Facilitated communication
          Language acquisition
          Learning
          Intellectual disabilities
          Children
          Kansas
          Confidence intervals
          Factor analysis
          Research funding
          Speech evaluation
          Statistics
          Video recording
          Structural equation modeling
          Inter-observer reliability
          Descriptive statistics
      keyword:
        assessment
        augmentative and alternative communication
        children
        intellectual disabilities
        outcomes
        assessment
        augmentative and alternative communication
        children
        intellectual disabilities
        outcomes
      ab: Purpose: To investigate a model of language development for nonverbal preschool-age children learning to communicate with augmentative or alternative communication. Method: Ninety-three preschool children with intellectual disabilities were assessed at Time 1, and 82 of these children were assessed 1 year later, at Time 2. The outcome variable was the number of different words the children produced (with speech, sign, or speech-generating devices). Children's intrinsic predictor for language was modeled as a latent variable consisting of cognitive development, comprehension, play, and nonverbal communication complexity. Adult input at school and home, and amount of augmentative or alternative communication instruction, were proposed mediators of vocabulary acquisition. Results: A confirmatory factor analysis revealed that measures converged as a coherent construct, and a structural equation model indicated that the intrinsic child predictor construct predicted different words children produced. The amount of input received at home, but not at school, was a significant mediator. Conclusions: The hypothesized model accurately reflects a latent construct of Intrinsic Symbolic Factor (ISF). Children who evidenced higher initial levels of ISF and more adult input at home produced more words 1 year later. The findings support the need to assess multiple child variables and suggest interventions directed to the indicators of ISF and input.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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