Syntactic Intervention for Cantonese-speaking Children With DLD

Recruiting now · Not applicable

Conditions studied: Developmental Language Disorder

In brief

The goal of this clinical trial is to compare the efficacy of explicit vs. implicit intervention on subject relative clause production in Cantonese-speaking children with Developmental Language Disorder (DLD). It will also learn about individual difference predictors of intervention outcomes. The main questions it aims to answer are: 1. Will the explicit intervention (Shape Coding+syntactic priming) on relative clause production lead to better outcomes than implicit intervention (syntactic priming only)? 2. Can pre-intervention procedural learning, working memory (WM) capacities, and grammar impairment severity predict the intervention outcomes across children with DLD? 3. Will 10 intervention sessions (500 doses of the target structure) lead to learning progress in children with DLD, even with implicit intervention, and will the progress plateau at some point of the intervention? Researchers will compare the explicit intervention to the implicit intervention to see if the explicit intervention leads to better interventional outcomes. Participants will: * Undergo diagnostic assessments of DLD to confirm their DLD status. * Complete pre-intervention assessments to assess their procedural learning and working memory capacities. * Undergo the intervention phase, which consists of a pretest, 10 intervention sessions, three posttests (after the 1st, 5th and 10th intervention), and a retention test (1 month after the last intervention).

Key facts

Study ID

NCT06954194

Run by

The Hong Kong Polytechnic University

People needed

32

Starts

2024-02-10

Expected to finish

2026-05-01

Last updated by the study team

2025-05-04

Who can join

Age: 5 and older, up to 8. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• being Cantonese dominant who learned Cantonese as their first language and attending Cantonese-medium primary schools.
• having normal IQ and no hearing impairment.
• scoring at least -1.25 SD below the mean in any two subtests of the Hong Kong Cantonese Oral Language Assessment Scale (a standardized language assessment tool for Hong Kong Cantonese-speaking children).

You may not qualify if…

• Autism Spectrum Disorder.

Where it is running

• Speech and Language Sciences Laboratory (SLS Lab) — Hong Kong, Hong Kong (enrolling)

Full record on ClinicalTrials.gov

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