Measuring Aided Language Development

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-04-01

Study Completion Date

2028-03-31

Brief Summary

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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).

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Detailed Description

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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.

Conditions

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Down Syndrome Cerebral Palsy Apraxia of Speech Speech Sound Disorder Speech Disorders in Children Speech and Language Disorder

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Treatment Group

AAC Generative Language Intervention

Group Type EXPERIMENTAL

AAC Generative Language Intervention

Intervention Type BEHAVIORAL

Aided AAC Language Input/Output Intervention

Interventions

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AAC Generative Language Intervention

Aided AAC Language Input/Output Intervention

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Clinical Identification of Down Syndrome or Cerebral Palsy + Significant Speech Impairment
* Must Speak English as a Primary Language
* Must Be Able to Express At Least 25 Words (using any communication mode)
* Must Be Able to Accurately Select Picture Symbols on iPad Communication App with at Least 50% Accuracy
* Vision and Hearing within Functional Limits or Corrected to be within Functional Limits for Study Activities