Effectiveness of Early Parent-Based Language Intervention

Study Overview
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Brief Summary
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The purpose of the study is to examine the effectiveness of a highly-structured parent-based language intervention group program for two-year-old children with language delay.

Detailed Description
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Language delay in toddlers is a prevalent problem for pediatric practitioners. As there are no clear guidelines to deal with this problem, in German speaking countries the wait-and-seeapproach is widely chosen, although longitudinal studies have found that children with language delay are at risc for cognitive, behavioral and social-emotional problems. During the last few years various forms of early language intervention have been increasingly implemented in German speaking countries. However, they have not been evaluated. Early parent-based intervention could be an economical way in prevention speech and language disorders.

Official Title
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Effectiveness of a Parent-Based Language Intervention Group Program for Two-Year-Old Children With Language Delay

Conditions
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Language Delay, Developmental Language Disorders

Intervention / Treatment
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* Other: Heidelberg Parent-based Language Intervention HPLI


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Children with receptive and/or expressive language abilities below norm range measured by the standardized and norm-referenced German developmental language test SETK-2 (Grimm, 2000) Exclusion Criteria: Children with visual impairments, genetic syndromes, metabolic diseases Children with previous language intervention

Ages Eligible for Study
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Minimum Age: 24 Months
Maximum Age: 27 Months

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: 1<br>The mothers of the two-years old children in the intervention group took part at the Heidelberg Parent-based Language Intervention HPLI | Other: Heidelberg Parent-based Language Intervention HPLI<br>* The HPLI is a group program for parents of young children with language delay. This 12-14week program includes seven two-our sessions and one three-our session six months later. It is designed for 5 to 10 people and based of an interactive model of language intervention, wich presumes that optimized parental input will provide better language-learning opportunities.<br>* Other names: Early language intervention;|
| No Intervention: 2<br>Waiting group, no intervention until children were three years of age | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Receptive and expressive language abilities using standardized instruments (SETK-2, SETK 3-5, AWST, HVS, HASE, HSET) |  | at 2; 6, 3, 4, 5 and 8 years of age | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Parent-report screening questionnaire ELFRA-2 (adoption of the MacArthur Communicative Development Inventories-CDI); cognitive and social-emotional development assessed by standardized instruments, |  | at 2;6, 3, 4, 5 and 8 years of age | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Language delay, Speech and language disorders, Early language intervention, Parent-based language intervention