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Behavioral Intervention

Retrieval-Based 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

Normal hearing with no evidence of neurological damage or disease

Be younger than 18 years old

Timeline

Screening 3 weeks

Treatment Varies

Follow Up 1 week after end of learning period

Awards & highlights

Study Summary

This trial will test the effectiveness of repeated recall in improving verb learning among children with DLD.

Who is the study for?

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

What is being tested?

The study tests retrieval-based verb learning to improve word acquisition 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 language learning rather than a medical treatment, there are no direct physical side effects associated with the interventions being studied.

Eligibility Criteria

Inclusion Criteria

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

Select...

My hearing is normal and I have no neurological issues.

Timeline

Screening ~ 3 weeks3 visits

Treatment ~ Varies

Follow Up ~ completed at start of study

Screening ~ 3 weeks

Treatment ~ Varies

Follow Up ~completed at start of study

This trial's timeline: 3 weeks for screening, Varies for treatment, and completed at start of study for reporting.

Treatment Details

Study Objectives

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

Primary outcome measures

Accuracy of generalizing novel verb to a new syntactic frame (number of verbs used in a syntactic frame different from the one used in initial learning and recall).

Word form recall accuracy (number of verbs 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: Spaced Retrieval practice during verb learningExperimental Treatment1 Intervention

Each child will learn 8 novel verbs referring to unfamiliar transitive actions ("mape"). Four verbs will be learned in a condition requiring spaced retrieval practice; four verbs will be learned in a "standard" study-only (no retrieval practice) condition. In the spaced retrieval 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 study-only condition, children will simply hear the verb used to describe the action.

Treatment

First Studied

Drug Approval Stage

How many patients have taken this drug

Retrieval-based verb learning

2023

N/A

~30

0 / 1Eligibility criteria met

Find a Location

Who is running the clinical trial?

Purdue UniversityLead Sponsor

224 Previous Clinical Trials

72,737 Total Patients Enrolled

2 Trials studying Language Developmental Disorders

60 Patients Enrolled for Language Developmental Disorders

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

328 Previous Clinical Trials

178,278 Total Patients Enrolled

3 Trials studying Language Developmental Disorders

180 Patients Enrolled for Language Developmental Disorders

Laurence B. Leonard, PhDPrincipal InvestigatorPurdue Universtiy

2 Previous Clinical Trials

60 Total Patients Enrolled

2 Trials studying Language Developmental Disorders

60 Patients Enrolled for Language Developmental Disorders

Frequently Asked Questions

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

Does this research protocol permit those aged 35 or older to participate?

"The study is currently accepting patients between 48 and 71 months of age."

Answered by AI

Can I participate in this experiment?

"This clinical trial seeks to enrol 32 children between the ages of 48 and 71 months, who have language development disorders."

Answered by AI

How many research participants are actively engaged in this experiment?

"Affirmative. Per clinicaltrials.gov, this medical experiment is presently recruiting participants and was initially advertised on March 1st 2023 with the latest update occurring August 16th 2023. 32 subjects are required at a single centre for this research trial to be successful."

Answered by AI

Are enrollment opportunities still accessible for this research project?

"Confirmed, this clinical trial is actively accepting participants. The original posting took place on March 1st 2023 and was last amended in mid-August of the same year according to records hosted on clinicaltrials.gov."

Answered by AI

Recent research and studies

clinicaltrials.govStudy

Retrieval-Based Word Learning in Developmental Language Disorder: Verb Learning

Laurence Leonard 2023. "Retrieval-Based Word Learning in Developmental Language Disorder: Verb Learning". ClinicalTrials.gov. https://clinicaltrials.gov/ct2/show/NCT06001866.