Single Case Research Design: Deaf Children's Language Outcomes

The University of Tennessee, Knoxville

Status: Active, not recruiting

Conditions: Language Development

Treatments: Behavioral: Strategic and Interactive Signing Instruction

Study type: Interventional

Funder types: Other; NIH

Identifiers

NCT06722261

478857

R21DC021024 (U.S. NIH Grant/Contract)

Details and patient eligibility

About

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.

Full description

A 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. Brainstorming occurs on Monday and the final sign language composition is shared on Friday. At the end of each day's intervention, child participants will independently narrate their expressed message recorded on videos. A score of 1 (applied correctly), 0.5 (applied but incorrectly), or 0 (omitted) will be given to their inclusion of target sign language skills, which is converted into percentages. If a child receives 100% on their target SL skill for 3 consecutive days (3 data points), Teacher 1 will select a new sign language skill to target. If the child receives 0% or 50% on their target sign language skill, Teacher 1 continues to focus on the same sign language skill.

Enrollment: 8 estimated patients

Sex: All

Ages: 4 to 12 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Deaf children in kindergarten to 3rd grade class in a school for the deaf

Exclusion criteria

• Non-deaf children

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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8 participants in 4 patient groups

Single Case Research Design: Phase 1

Experimental group

Description:

A 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.

Treatment:

Behavioral: Strategic and Interactive Signing Instruction

Single Case Research Design: Phase 2

Experimental group

Description:

A 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.

Treatment:

Behavioral: Strategic and Interactive Signing Instruction

Single Case Research Design: Phase 3

Experimental group

Description:

A 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.

Treatment:

Behavioral: Strategic and Interactive Signing Instruction

Single Case Research Design: Phase 4

Experimental group

Description:

A 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.

Treatment:

Behavioral: Strategic and Interactive Signing Instruction