An interventional study of AAC Generative Language Intervention in Down Syndrome, Cerebral Palsy and Apraxia of Speech, sponsored by University of Central Florida. Recruiting at 1 site in United States. Open to participants aged 42 Months to 60 Months. Per ClinicalTrials.gov, last updated 2025-05-16.
Sponsored by University of Central Florida · Not applicable, Interventional, and Diagnostic
The focus of the current study is to systematically investigate the psychometric properties of a range of aided language measures, which are based on the Graphic Symbol Utterance and Sentence Development Framework (Binger \& Kent-Walsh).
Our central hypotheses are: (1) psychometrically sound measures can be established to capture growth within and across different dimensions of language acquisition, and (2) some elicitation contexts will be better than others at capturing aided language growth. Specific Aim 1 identifies valid measures to characterize aided language progress. Aim 1A uses existing data to document the psychometric properties of a range of aided language measures for preschoolers at the early stages of aided communication acquisition who have received 4 months of aided language intervention. Aim 1B analyzes language progression for high-performing aided communicators who will receive 24 months of intervention; this allows for investigation across all phases of early aided language acquisition. Specific Aim 2 identifies elicitation contexts that demonstrate the most productive aided language use. Achievement of the aims will result in measures that demonstrate strong reliability, differentiate growth for different populations, describe different dimensions of language growth, and are clinically feasible.
438 studies on the registry are indexed under Down Syndrome; 99 are open to participants now.
This study's planned enrollment of 60 is above the median of 37 across 286 interventional studies indexed under Down Syndrome.
Browse Down Syndrome studies →University of Central Florida is the lead sponsor of 104 studies on the registry; 42 are open to participants now.
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Exclusion Criteria:
AAC Generative Language Intervention
Behavioral: AAC Generative Language Intervention
Aided AAC Language Input/Output Intervention
Aided AAC Utterance Length
Aided AAC Sentence Length Measured in Morphemes
Time frame: 24 Months
Plan to share: Yes — NICHD Data and Specimen Hub
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