Trial Radar AI | ||
|---|---|---|
Clinical Trial NCT06935851 (VOCAL+) for Developmental Child Delay is active, not recruiting. See the Trial Radar Card View and AI discovery tools for all the details. Or ask anything here. | ||
One trial matched filter criteria
Card View
Effect of Word Characteristics and Orthography on Vocabulary Learning (VOCAL+)
Clinical Trial NCT06935851 (VOCAL+) is designed to study Other for Developmental Child Delay. It is a Early Phase 1 interventional trial that is active, not recruiting, having started on February 3, 2025, with plans to enroll 23 participants. Led by Mariana Silva, it is expected to complete by May 21, 2025. The latest data from ClinicalTrials.gov was last updated on April 20, 2025.
Brief Summary
The purpose of the study is to investigate how word characteristics (e.g., 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.
Detailed Description
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 or speech and language impairments, learn words differently from typically developing children.
Official Title
The Effect of Word Characteristics and Orthography on Vocabulary Learning
Conditions
Developmental Child DelayOther Study IDs
- VOCAL+
- STUDY00020728
NCT ID Number
Start Date (Actual)
2025-02-03
Last Update Posted
2025-04-20
Completion Date (Estimated)
2025-05-21
Enrollment (Estimated)
23
Study Type
Interventional
PHASE
Early Phase 1
Status
Active, not recruiting
Primary Purpose
Other
Design Allocation
N/A
Interventional Model
Single Group
Masking
None (Open Label)
Arms / Interventions
| Participant Group/Arm | Intervention/Treatment |
|---|---|
OtherSingle group Assignment There are no subgroups in this study. All participants will receive the intervention. | VOCAB + The purpose of the study is to investigate how word characteristics (e.g., 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. |
Primary Outcome Measures
Secondary Outcome Measures
| Outcome Measure | Measure Description | Time Frame |
|---|---|---|
Pre- and post test total correct scores | Is there a significant difference in pre- and post test total correct scores for different word types with mother's education level covaried as measured by comprehension, recognition, production, spelling recognition and spelling production. | up to 12 weeks |
| Outcome Measure | Measure Description | Time Frame |
|---|---|---|
Number of trials to criterion | Is there a significant difference in the number of trials to criterion required to learn a new word for different word types as measured by comprehension, recognition, production, spelling recognition and spelling production? | up to 8 weeks |
Eligibility Criteria
Eligible Ages
Child
Minimum Age
8 Years
Eligible Sexes
All
Accepts Healthy Volunteers
Yes
Score of 85 or lower on the Clinical Evaluation of Language Fundamentals - CELF (4) Enrolled in or just completed third grade.
Any diagnosis of sensory impairments A diagnosis of autism or traumatic brain injury
Mariana SilvaArizona State UniversityStudy Responsible Party
Mariana Silva, Sponsor-Investigator, Doctoral Student, Arizona State University
No contact data.
1 Study Locations in 1 Countries
Arizona
Osborn District School Encanto, Phoenix, Arizona, 85013, United States