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| ID | Type | Description | Link |
|---|---|---|---|
| R01DC016901 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| National Institute on Deafness and Other Communication Disorders (NIDCD) | NIH |
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This study examines the development of American Sign Language by deaf and hard of hearing (DHH) children and their parents.
After being informed about the study and potential risks, adult participants who give written informed consent and children whose parents who give written permission will be enrolled in the study. They will participate in preliminary language tasks to assess baseline performance on American Sign Language (ASL) measures. Subsequently they will have weekly sessions with an ASL Specialist to support their development of ASL, following a 6-week on/6-week off ABABABAB sequence.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| ASL Services - Adult ASL Development | Experimental | Presence (or absence, across 6-week periods) of ASL services designed to support improvement in ASL fluency |
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| ASL Services - Child Language Development | Experimental | Presence (or absence, across 6-week periods) of ASL services designed to support improvement in ASL fluency |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ASL Services | Behavioral | ASL specialist meets with participants and provides ASL instruction |
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| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline in ASL Phonological Production Accuracy over 12 Months | Participants copy ASL signs produced on video; their productions are scored for phonological accuracy and reported as percent correct out of all possible phonological features. Weekly measures are taken for SCD analysis. | Baseline and 12 months |
| Measure | Description | Time Frame |
|---|---|---|
| Change from Baseline in ASL Production Frequency over 12 Months | Participants engage in naturalistic play sessions which are videorecorded. Sessions are analyzed for the number of productions in ASL over a 15-minute period. Weekly measures are taken for SCD analysis. | Baseline and 12 months |
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Inclusion Criteria:
Children:
Adults:
- One adult caregiver for each child
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Diane C Lillo-Martin, Ph.D. | University of Connecticut | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Connecticut - Department of Linguistics | Storrs | Connecticut | 06268 | United States |
De-identified data from language tasks
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After (or with) publication of the results
De-identified numerical coding scores will be shared using an open science site that is generally accessible
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| ID | Term |
|---|---|
| D003638 | Deafness |
| D034381 | Hearing Loss |
| D007802 | Language |
| D012813 | Sign Language |
| ID | Term |
|---|---|
| D006311 | Hearing Disorders |
| D004427 | Ear Diseases |
| D010038 | Otorhinolaryngologic Diseases |
| D012678 | Sensation Disorders |
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Single Case Design - interrupted time series. Participants will receive intervention in 6-week on/off blocks. Measurements are taken in both on and off weeks.
The Bayesian procedure developed by Swaminathan et al. (2014) involves fitting piece-wise linear or curvilinear trends across the phases, modeling dependencies in the observations with a suitably chosen autoregressive error scheme, and using the Markov Chain Monte Carlo (MCMC) method to obtain the posterior distributions of the model parameters and effect size measures
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| D009461 |
| Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D003142 | Communication |
| D001519 | Behavior |
| D008369 | Manual Communication |
| D009633 | Nonverbal Communication |