Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The purpose of the study is to investigate how phonotactic probability) and orthography affect vocabulary by children with low oral language levels. The investigators will use a 2 x 2 within-subjects factorial design where every participant receives the treatment. This 12-week study aims to improve vocabulary learning efficiency for children with low oral language levels. The study's findings will uniquely contribute to the field in that this is the first research study using real words instead of nonwords while combining word learning research with vocabulary learning.
The investigators are proposing a vocabulary intervention that analyzes word sounds and sound segments. This analysis offers valuable insights into how children at risk for specific learning disabilities, such as dyslexia, DLD or speech and language impairments, learn words differently from typically developing children.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Single group Assignment | Other | There are no subgroups in this study. All participants will receive the intervention. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| VOCAB + | Behavioral | The purpose of the study is to investigate how phonotactic probability and orthography effect vocabulary learning by children with low oral language levels. We will be using a 2 x 2 within-subjects factorial design where every participant serves as their own control. This 12-week study aims to improve the efficiency of vocabulary learning for children with low oral language levels. The four interventions that are all participants will be exposed to are the following: high pp words with orthography; high pp words without orthography; low pp words with orthography; low pp words without orthography. |
| Measure | Description | Time Frame |
|---|---|---|
| 1. Vocabulary Production 2. Vocabulary Recognition 3. Vocabulary Comprehension 4. Spelling |
Time Frame Posttest (Weeks 11-12) | up to 12 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| 1. Learning Change Vocabulary Production 2. Learning Change Vocabulary Recognition 3. Learning Change Vocabulary Comprehension 4. Learning Change Vocabulary Spelling |
|
Not provided
Inclusion Criteria:
Enrolled in or just completed third grade.
Exclusion Criteria:
Any diagnosis of sensory impairments A diagnosis of autism or traumatic brain injury
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Osborn District School Encanto | Phoenix | Arizona | 85013 | United States |
Not provided
Not provided
| ID | Type | URL | Comment |
|---|---|---|---|
| Study Protocol | View IPD |
The data will be made available within 7 months of the study's conclusion and will remain available for at least 5 years.
Signing a data use agreement.
Not provided
| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | May 4, 2026 | May 5, 2026 | Prot_SAP_001.pdf |
Not provided
| ID | Term |
|---|---|
| D007805 | Language Development Disorders |
| ID | Term |
|---|---|
| D007806 | Language Disorders |
| D003147 | Communication Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
Not provided
Not provided
Within subject single group assignment
Not provided
Not provided
Not provided
Not provided
|
| up to 12 weeks |
| 1. Daily Vocabulary Production 2. Daily Vocabulary Recognition 3. Daily Vocabulary Comprehension 4.Daily Vocabulary Spelling |
Time Frame four times per week during the intervention | Weeks 3-10 |
signing a data agreement |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |