NCT06995014 Retrieval-based Word Learning in Developmental Language Disorder: Adaptive Retrieval Schedule
| NCT ID | NCT06995014 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Purdue University |
| Condition | Developmental Language Disorder |
| Study Type | INTERVENTIONAL |
| Enrollment | 32 participants |
| Start Date | 2024-08-15 |
| Primary Completion | 2025-12-31 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 32 participants in total. It began in 2024-08-15 with a primary completion date of 2025-12-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
Children with developmental language disorder (DLD; also referred to as specific language impairment) experience a significant deficit in language ability that is longstanding and harmful to the children's academic, social, and eventual economic wellbeing. Word learning is one of the principal weaknesses in these children. This project focuses on the word learning abilities of four- and five-year-old children with DLD. The goal of the project is to determine whether special benefits accrue when these children must frequently recall newly introduced words during the course of learning. In the current study, the investigators compare a "standard" repeated spaced retrieval schedule, with fixed spacing between hearing a word and attempting to retrieve it, to an "adaptive" repeated spaced retrieval schedule in which opportunities to retrieve a given word are tailored to the individual child's current knowledge state. The goal of the study is to determine whether the adaptive schedule can increase children's absolute levels of learning while maintaining the advantages of repeated spaced retrieval.
Eligibility Criteria
Inclusion Criteria: * a significant deficit in language ability (language test score below cutoff for best sensitivity/specificity) or documented age-appropriate language ability. * normal hearing. * no evidence of neurological damage or disease. * scores on tests of nonverbal intelligence above the intellectual disability range * not within Autistic range on Autism screening test * native English speaker (can be bilingual) Exclusion Criteria: * failed hearing screening * known neurological damage or disease * scores on tests of nonverbal intelligence below the intellectual disability range (standard score less than 75) * autism spectrum disorder * non-native English speaker
Contact & Investigator
Laurence B Leonard, PhD
PRINCIPAL INVESTIGATOR
Purdue University
Frequently Asked Questions
Who can join the NCT06995014 clinical trial?
This trial is open to participants of all sexes, aged 48 Months or older, up to 71 Months, studying Developmental Language Disorder. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT06995014 currently recruiting?
Yes, NCT06995014 is actively recruiting participants. Contact the research team at deevy@purdue.edu for enrollment information.
Where is the NCT06995014 trial being conducted?
This trial is being conducted at West Lafayette, United States.
Who is sponsoring the NCT06995014 clinical trial?
NCT06995014 is sponsored by Purdue University. The principal investigator is Laurence B Leonard, PhD at Purdue University. The trial plans to enroll 32 participants.