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NCT06935851 · ClinicalTrials.gov registry record · Early Phase 1
Effect of Word Characteristics and Orthography on Vocabulary Learning
A Early Phase 1 study of Developmental Child Delay, sponsored by Mariana Silva.
- Active
- Registry status
- Early Phase 1
- Development phase
- 23
- Enrollment target
- 1
- Study location
NCT06935851: Active Early Phase 1 study of Developmental Child Delay, sponsored by Mariana Silva.
NCT06935851 is a Early Phase 1 study of Developmental Child Delay that is active but no longer recruiting, run by Mariana Silva. The registered enrollment target is 23 participants, below the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (57% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT06935851, a Early Phase 1 study of Developmental Child Delay, is active but no longer recruiting, sponsored by Mariana Silva.
- ACTIVE NOT RECRUITING
- Registry status
- Early Phase 1
- Development phase
- 23 participants
- Enrollment target
- 1
- Study location
Study 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.
Primary Outcome
1. Production Number of correctly produced target words (range 0-32), measured using a picture-naming task, scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12) 2. Recognition Number of correctly identified target words from a 4-choice array (range 0-32), scored as correct (1) or incorrect (0), and reported as percentage correct. Time Frame Posttest (Weeks 11-12) 3. Comprehension Number of correctly selected target images from a 4-
Conditions Studied
Interventions
- BEHAVIORAL VOCAB +
Study Locations (1)
Arizona
- Osborn District School Encanto - Phoenix
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 23 participants |
| Start Date | 2025-02-03 |
| Est. Completion | 2025-05-21 |
| Phase | Early Phase 1 |
What the registry record for NCT06935851 still lists
NCT06935851 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 23 participants, a relatively small participant target, below the 53-participant average among 2,764 other Early Phase 1 trials with a reported enrollment target (57% lower).
The record links to 1 condition, with Developmental Child Delay appearing as the primary indexed condition, and to 1 intervention - of which VOCAB + is the first listed.
NCT06935851 reports a single indexed study location in Arizona.
Frequently Asked Questions
What is clinical trial NCT06935851 about?
NCT06935851 is a clinical study titled "Effect of Word Characteristics and Orthography on Vocabulary Learning". 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...
What is the current status of trial NCT06935851?
This trial is currently active not recruiting. It is a Early Phase 1 study. The enrollment target is 23 participants. The study started on 2025-02-03. Estimated completion is 2025-05-21.
What conditions does trial NCT06935851 study?
This clinical trial studies the following conditions: Developmental Child Delay.
What interventions are being tested in trial NCT06935851?
The interventions under investigation include: VOCAB + (BEHAVIORAL).
Who is sponsoring clinical trial NCT06935851?
This trial is sponsored by Mariana Silva, which has 1 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT06935851 being conducted?
This trial has 1 study location across Arizona. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT06935851's enrollment target sits among peer trials
23 1088th of 2000 higher than 898 of 2,000 other Early Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Early Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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