NCT07519629

Brief Summary

The purpose of this study is to determine whether Spanish-speaking caregivers can learn to teach science vocabulary to their children with the use and educational app and a short training video with target words. The children will take language, speech, and hearing tests, as well as science and vocabulary pretests with a speech-language pathologist. You will be asked to answer some questions about your language use in the house and other places. If you and your child qualify for the study, the researcher will randomly place you a group to 1) use the app, or 2) use books. Since you are chosen at random, there is no way of knowing which group you and your child will be in before you start. Participants will take part in an 11-week study (3 weeks of testing at the beginning, middle, and end of study, and 8 weeks of intervention). The testing will be conducted in a place that is comfortable for your child (home, school, university clinic). The intervention can be done at home (researchers will not be present for this part of the study, but we will be available to support you or answer questions). We want you to play (group 1) or read (group 2) with your child two times a week (\~30 minutes) and send the audio recording of your interaction to our researchers.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
64

participants targeted

Target at P50-P75 for not_applicable

Timeline
18mo left

Started Feb 2026

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
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

Study Progress24%
Feb 2026Dec 2027

Study Start

First participant enrolled

February 23, 2026

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

March 27, 2026

Completed
13 days until next milestone

First Posted

Study publicly available on registry

April 9, 2026

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

April 9, 2026

Status Verified

April 1, 2026

Enrollment Period

10 months

First QC Date

March 27, 2026

Last Update Submit

April 6, 2026

Conditions

Keywords

caregiver interventionbilingualimplementation sciencevocabulary

Outcome Measures

Primary Outcomes (3)

  • Caregiver fidelity

    Caregivers will use target vocabulary words a specified number of times during science activity with their child, as measured by review of audio recorded sessions.

    11 weeks

  • Improved Tier-2 vocabulary for children

    Children will be tested at baseline, mid intervention, and post intervention to determine if target vocabulary words were learned during caregiver provided intervention.

    11 weeks

  • Modify intervention and training

    Barriers and facilitators of teaching caregivers robust vocabulary intervention will be recorded and coded from caregiver focus group responses.

    11 weeks

Study Arms (2)

Caregiver delivered vocabulary intervention

EXPERIMENTAL

Caregivers will be trained to teach target vocabulary to their child during science activities

Behavioral: Robust vocabulary intervention

Caregiver-child book sharing

NO INTERVENTION

Caregivers will read books on target science concepts twice a week with their child

Interventions

Caregivers will be trained to teach target vocabulary to their children

Caregiver delivered vocabulary intervention

Eligibility Criteria

Age4 Years - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Children:
  • age (4-6) and not have completed kindergarten prior to pretesting
  • pass a hearing screening to rule out hearing loss as a cause for language impairment
  • speak Spanish at least 50% of their day reported in BIOS
  • have a confirmed diagnosis of DLD via the BESA
  • not have a diagnosis of intellectual disability via Matrices subtest or social communication disorder via Social Communication Questionnaire
  • be able to speak with at least 3-word utterances
  • Caregivers:
  • have access to a smart phone
  • spend time with the child participant daily
  • speak fluent Spanish

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

NAU Speech-Language-Hearing Clinic

Flagstaff, Arizona, 86011, United States

RECRUITING

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

Lindsey A Hiebert, Ph.D.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 27, 2026

First Posted

April 9, 2026

Study Start

February 23, 2026

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

April 9, 2026

Record last verified: 2026-04

Locations