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Effect of Phonotactic Probability and Orthography on Vocabulary Learning

NCT06935851 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 23

Last updated 2026-05-18

No results posted yet for this study

Summary

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.

Conditions

  • DLD

Interventions

BEHAVIORAL

VOCAB +

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.

Sponsors & Collaborators

  • Arizona State University

    lead OTHER

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
8 Years
Max Age
9 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-02-03
Primary Completion
2025-04-25
Completion
2025-04-25

Countries

  • United States

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06935851 on ClinicalTrials.gov