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Behavioral Intervention

Retrieval-Based Word Learning for Language Disorders

N/A

Waitlist Available

Led By Laurence B. Leonard, PhD

Research Sponsored by Purdue University

Eligibility Criteria Checklist

Specific guidelines that determine who can or cannot participate in a clinical trial

Must have

No evidence of neurological damage or disease

Normal hearing

Timeline

Screening 3 weeks

Treatment Varies

Follow Up information collected at start of study

Awards & highlights

Study Summary

This trial is testing whether children with developmental language disorder (DLD) learn better when they have to frequently recall newly introduced words.

Who is the study for?

This trial is for four- and five-year-old children with developmental language disorder (DLD). They must have normal hearing, no neurological damage or disease, nonverbal intelligence scores above intellectual disability range, be native English speakers (bilinguals included), and not on the autism spectrum. Children should show a significant deficit in language ability.Check my eligibility

What is being tested?

The study tests retrieval-based word learning to improve vocabulary in children with DLD. It aims to see if making kids frequently recall new words helps them learn better compared to other methods.See study design

What are the potential side effects?

Since this is an educational intervention focusing on word learning techniques rather than a medical treatment, there are no traditional side effects; however, participants may experience varying levels of frustration or fatigue.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below

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I do not have any neurological damage or diseases.

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I have normal hearing.

Timeline

Screening ~ 3 weeks3 visits

Treatment ~ Varies

Follow Up ~ 1 week after end of learning period

Screening ~ 3 weeks

Treatment ~ Varies

Follow Up ~1 week after end of learning period

This trial's timeline: 3 weeks for screening, Varies for treatment, and 1 week after end of learning period for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.

Primary outcome measures

Word form recall accuracy (number of words correctly recalled)

Word meaning recall accuracy (number of semantic associations correctly recalled)

Word recognition (number of words accurately identified)

Secondary outcome measures

Number of correctly identified words on Peabody Picture Vocabulary Test, 5th Ed.

Years of maternal education

Trial Design

1Treatment groups

Experimental Treatment

Group I: Retrieval practice during word learning: expanding scheduleExperimental Treatment1 Intervention

Each child will learn 8 novel nouns referring to unfamiliar plants and animals ("nepp") and a related "meaning" ("a nepp likes rain") . Four nouns will be learned in an expanding spaced retrieval practice condition; four will be learned in a "standard" spaced retrieval practice condition. In the "standard" spaced retrieval practice condition, the number of other words intervening between hearing the target and an attempt to retrieve it will increase from 0 to 3 words. In the expanding spaced retrieval practice condition, the number of other words intervening between hearing the target and an attempt to retrieve it will increase gradually from 0 to 1 to 3 words.

0 / 2Eligibility criteria met

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Who is running the clinical trial?

Purdue UniversityLead Sponsor

224 Previous Clinical Trials

72,736 Total Patients Enrolled

2 Trials studying Language Developmental Disorders

59 Patients Enrolled for Language Developmental Disorders

National Institute on Deafness and Other Communication Disorders (NIDCD)NIH

328 Previous Clinical Trials

178,277 Total Patients Enrolled

3 Trials studying Language Developmental Disorders

179 Patients Enrolled for Language Developmental Disorders

Laurence B. Leonard, PhDPrincipal InvestigatorPurdue University

2 Previous Clinical Trials

59 Total Patients Enrolled

2 Trials studying Language Developmental Disorders

59 Patients Enrolled for Language Developmental Disorders

Media Library

Retrieval-based word learning (Behavioral Intervention) Clinical Trial Eligibility Overview. Trial Name: NCT05325333 — N/A

Language Developmental Disorders Research Study Groups: Retrieval practice during word learning: expanding schedule

Language Developmental Disorders Clinical Trial 2023: Retrieval-based word learning Highlights & Side Effects. Trial Name: NCT05325333 — N/A

Retrieval-based word learning (Behavioral Intervention) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05325333 — N/A

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What criteria must participants fulfill to join this clinical study?

"Prospective participants must have a particular language disorder, be aged between 4 and 5.95 years old, to qualify for this trial. Approximately 32 candidates are desired by the medical team running this research project."

Answered by AI

To what age range does this medical experiment accept applicants?

"This research is looking for volunteers aged between 4 and 5 years old."

Answered by AI

Does this research endeavor have openings for participants?

"Affirmative. According to information hosted on clinicaltrials.gov, this research is in the process of enlisting participants; it was initially posted on March 16th 2022 and has been revised since then as recently as July 26th 2022. 32 people are needed from a single medical facility for completion of the trial."

Answered by AI

How many volunteers are contributing to this clinical trial?

"Affirmative. The data hosted on clinicaltrials.gov establishes that this medical experiment, which was first made public on March 16th 2022, is currently recruiting participants. Only 32 volunteers are needed from 1 separate facility."

Answered by AI

Recent research and studies

clinicaltrials.govStudy

Retrieval-Based Word Learning in Developmental Language Disorder

Laurence Leonard 2022. "Retrieval-Based Word Learning in Developmental Language Disorder". ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT05325333.