NCT06932016

Brief Summary

The goal of this project is to compare the relative effectiveness of two novel treatments to improve the knowledge of the passive sentence structure of school-age (8-11-year-old) children with developmental language disorder (DLD). Treatment 1 is an implicit approach to promoting children's automatic grammar learning and Treatment 2 is a more conventional explicit approach in which participants are taught the rules underlying the grammar. Treatment 1 involves children listening to an examiner produce a target sentence 20 times during each training session while describing a picture. The children will then see a picture and be asked to describe the action taking place. Treatment 2 involves children listening to an examiner describe the action occurring in a picture using a sentence pattern targeted to the child's deficit. The child will then be asked who did the action in the sentence and who received the action, after which the examiner will provide specific feedback about why the child's response was correct or incorrect. The expectation is that over a short period children will begin to use their targeted sentence pattern after hearing the examiner produce it many times. Children will complete four outcome measures (syntactic knowledge, sentence comprehension, sentence chunking, narrative comprehension/ production) prior to treatment, immediately after treatment, and five weeks after treatment. Children will be randomly assigned to one of the two treatments. Both treatments will be delivered 20 times over 10 weeks. The investigators anticipate that the children receiving Treatment 1 will show stronger gains in knowledge across the four outcome measures.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P75+ for not_applicable

Timeline
29mo left

Started Sep 2026

Typical duration for not_applicable

Geographic Reach
1 country

4 active sites

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 10, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

April 17, 2025

Completed
1.4 years until next milestone

Study Start

First participant enrolled

September 1, 2026

Expected
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 31, 2029

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2029

Last Updated

April 1, 2026

Status Verified

March 1, 2025

Enrollment Period

2.4 years

First QC Date

April 10, 2025

Last Update Submit

March 26, 2026

Conditions

Keywords

Treatment

Outcome Measures

Primary Outcomes (5)

  • Sentence Comprehension

    This measure assesses participants' comprehension of subject-object and passive sentences in a conventional picture pointing task, i.e., listening to a sentence then pointing to an image that best depicts what is stated in the sentence. The dependent variable is percent accuracy (0% - 100%).

    Comprehension is assessed at baseline and twice at post-test, immediately following treatment and up to 5 weeks post-treatment.

  • Sentence Priming

    This measure assesses participants' knowledge of subject-object and passive sentence structures using a syntactic priming task (i.e., producing the target structure to describe the action occurring in an imagine after hearing the examiner produce the target structure when describing the action occurring in a "prime" imagine). The dependent variable is percent accuracy in producing the target correctly (0% - 100%).

    Syntactic knowledge is assessed at baseline and twice at post-test, immediately following treatment and up to 5 weeks post-treatment.

  • Sentence Chunking

    This measure assesses participants' knowledge of subject-object and passive sentence structures using a sentence production task in which participants imitate a sentence spoken by the examiner. The primary dependent variable is the percent accuracy of word recall for each stimulus sentence (0% - 100%).

    Sentence chunking is assessed at baseline and twice at post-test, immediately following treatment and up to 5 weeks post-treatment.

  • Narrative Comprehension/Retell

    This measure assesses participants' ability to generalize the use of a trained sentence-level target (subject-object or passive structure) to the discourse level by comprehending and retelling stories containing a targeted sentence structure. The primary dependent variables are (a) percent questions comprehended correctly in a story (0% - 100%) and (b) percent target sentences produced correctly (0% -100%).

    Narrative comprehension/retell is assessed at baseline and twice at post-test, immediately following treatment and up to 5 weeks post-treatment.

  • Working Memory

    This measure assesses participants' working memory capacity/span while performing a cognitive activity, i.e., listening to lists of words and digits presented in random order at different list lengths (2-8 items) and then first recalling the words in serial order followed by the digits in serial order. The primary dependent variable is memory span (1.0 items-8.0 items).

    Working memory is assessed at baseline and twice at post-test, immediately after treatment and up to 5 weeks post-treatment.

Study Arms (4)

Implicit Immediate Treatment

EXPERIMENTAL

This treatment involves providing participants an implicit approach to passive sentence structure learning via a syntactic priming paradigm immediately following the completion of the pre-treatment measures.

Behavioral: Grammar Treatment

Implicit Delayed Treatment

EXPERIMENTAL

This treatment involves providing participants an implicit approach to passive sentence structure learning via a syntactic priming paradigm 10 weeks following the completion of the pre-treatment measures. This arm allows assessing whether improvement on the outcome measures is due to 10 weeks of treatment or just maturation.

Behavioral: Grammar Treatment

Explicit Immediate Treatment

EXPERIMENTAL

This treatment involves providing participants an explicit approach to passive sentence structure learning via conventional teaching of grammatical rules immediately following the completion of the pre-treatment measures.

Behavioral: Grammar Treatment

Explicit Delayed Treatment

EXPERIMENTAL

This treatment involves providing participants an explicit approach to passive sentence structure learning via conventional teaching of grammar rules 10 weeks following the completion of the pre-treatment measures. This arm allows assessing whether improvement on the outcome measures is due to 10 weeks of treatment or just maturation.

Behavioral: Grammar Treatment

Interventions

Behavioral intervention that focuses on improving passive sentence structure knowledge.

Explicit Delayed TreatmentExplicit Immediate TreatmentImplicit Delayed TreatmentImplicit Immediate Treatment

Eligibility Criteria

Age8 Years - 11 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Language impairment: standard score of 34 or lower on the Test of Language and Learning Skills
  • Nonverbal IQ: nonverbal quotient of 77 or higher
  • Normal range hearing
  • Normal or corrected vision
  • Native English speaker
  • Sentence comprehension screening/sentence chunking screening 50% or lower

You may not qualify if:

  • Neurodevelopmental disorder
  • Emotional/behavioral disorder
  • Frank neurological disorder
  • Treatment for complex syntax from outside clinician

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

University of Arizona

Tucson, Arizona, 85721, United States

Location

Ohio University

Athens, Ohio, 45701, United States

Location

Utah State University

Logan, Utah, 84322, United States

Location

West Virginia University

Morgantown, West Virginia, 26506, United States

Location

MeSH Terms

Conditions

Language Development Disorders

Condition Hierarchy (Ancestors)

Language DisordersCommunication DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

James Montgomery

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: For this study, participants will be assigned to one of four treatment conditions:1) Immediate Implicit Treatment; 2) Delayed Implicit Treatment; 3) Immediate Explicit Treatment; and 4) Delayed Explicit Treatment.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 10, 2025

First Posted

April 17, 2025

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

January 31, 2029

Study Completion (Estimated)

January 31, 2029

Last Updated

April 1, 2026

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will share

All study protocols and all de-identified individual participant level performance data across all standardized tests, screening measures, and outcome measures will be made available.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will be available to the public starting 1 year following the completion of the project in April 2029, i.e., May 2030.
Access Criteria
Study protocols and de-identified project data will be available to anyone in an Open Science Framework repository one year after the completion of the project. The repository will include a detailed user guide, a codebook with univariate statistics for each variable, and study-level metadata. Documentation in the form of .pdf documents will include a description of each task and task instructions. Each study will be assigned a digital object identifier (DOI). These data DOIs will be referenced in any publications to allow the research community easy access to the exact data used in the publication. Monitoring of and compliance with this Data Management and Sharing Plan will be the responsibility of Sarah Schwartz at Utah State University in coordination with professional staff at each site, working under the guidance of the three PIs.

Locations