Single Case Research Design: Deaf Children's Language Outcomes
2 other identifiers
interventional
8
1 country
1
Brief Summary
Eight deaf children in kindergarten to 3rd grade classes will be randomly selected for single case research. Their language skills will be monitored and assessed daily. Using a noncurrent multiple baseline design (Single Case Research Design or SCRD), Strategic and Interactive Signing Instruction (SISI) will be administered to two children in each of four classes.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Aug 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 5, 2024
CompletedFirst Posted
Study publicly available on registry
December 9, 2024
CompletedStudy Start
First participant enrolled
August 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 30, 2026
November 24, 2025
October 1, 2025
1.2 years
December 5, 2024
November 21, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Sign Language Skills
Deaf children's development of target sign language skills will be documented.
From enrollment to the end of treatment 9 academic months later.
Study Arms (4)
Single Case Research Design: Phase 1
EXPERIMENTALA randomized selection method will be employed to select deaf children to participate in single case research. Two children will be selected from each age group between 5 and 10, making a total of eight students. Their language skills will be closely monitored and evaluated over the course of the year. Following the noncurrent multiple baseline design, in succession across 8 child participants in 4 classes, 2 Phase 1 participants in a class will begin receiving SISI while other children remain in the baseline for 3 to 9 weeks.
Single Case Research Design: Phase 2
EXPERIMENTALA randomized selection method will be employed to select deaf children to participate in single case research. Two children will be selected from each age group between 5 and 10, making a total of eight students. Their language skills will be closely monitored and evaluated over the course of the year. Following the noncurrent multiple baseline design, in succession across 8 child participants in 4 classes, three weeks after Phase 1 participants have begun SISI, Phase 2 participants in a class will begin receiving SISI while other children remain in the baseline.
Single Case Research Design: Phase 3
EXPERIMENTALA randomized selection method will be employed to select deaf children to participate in single case research. Two children will be selected from each age group between 5 and 10, making a total of eight students. Their language skills will be closely monitored and evaluated over the course of the year. Following the noncurrent multiple baseline design, in succession across 8 child participants in 4 classes, 2 SCRD participants in a class will begin receiving SISI while other children remain in the baseline for 3 weeks.
Single Case Research Design: Phase 4
EXPERIMENTALA randomized selection method will be employed to select deaf children to participate in single case research. Two children will be selected from each age group between 5 and 10, making a total of eight students. Their language skills will be closely monitored and evaluated over the course of the year. Following the noncurrent multiple baseline design, in succession across 8 child participants in 4 classes, 2 SCRD participants in a class will begin receiving SISI while other children remain in the baseline for 3 weeks.
Interventions
Evidence-based instructional methods, grounded in cognitive, sociocultural, and linguistic theories, are applied to interventions that support sign language development in deaf children.
Eligibility Criteria
You may qualify if:
- Deaf children in kindergarten to 3rd grade class in a school for the deaf
You may not qualify if:
- Non-deaf children
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Tennessee, Knoxville
Knoxville, Tennessee, 37996, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 5, 2024
First Posted
December 9, 2024
Study Start
August 1, 2025
Primary Completion (Estimated)
September 30, 2026
Study Completion (Estimated)
November 30, 2026
Last Updated
November 24, 2025
Record last verified: 2025-10
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, CSR, ANALYTIC CODE
- Time Frame
- December, 2026 to December, 2036
- Access Criteria
- Researchers may contact the principal investigator for additional supporting information not available on OSF.
Under a data-sharing agreement that is in compliance with the internal policy at UTK, non-identifying data can be shared with other researchers for a minimum of 10 years on the University of Tennessee Research and Creative Exchange (TRACE). The raw data consists of videos of teachers, which will not be shared to maintain confidentiality. The processed data will be in the form of percentages for individual teachers across an academic year documented in a .csv file (Excel). Center for Open Science Foundation (OSF) is a free and open source project management tool that supports researchers throughout their entire project lifecycle. OSF also allows people to locate this data through project names, author names, and study keywords.