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Experimental Word Learning in Children With and Without Language Impairment

This study has been completed.
Information provided by:
University of Sao Paulo Identifier:
First received: January 22, 2008
Last updated: NA
Last verified: October 2007
History: No changes posted
The purpose of this study is to compare the performances of normally developing children and children with Language Impairment (LI) in three different experimental settings designed to promote vocabulary acquisition. This comparison will also provide evidence to support different intervention approaches designed to increase vocabulary abilities, which has been proved to be one of the major deficits of young children with LI.

Condition Intervention
Developmental Language Disorders
Behavioral: Word-learning

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Experimental Word Learning in Children With Normal Development and Children With Language Impairment

Resource links provided by NLM:

Further study details as provided by University of Sao Paulo:

Primary Outcome Measures:
  • Performance on a post-test administered after every word-learning session. [ Time Frame: Three weeks ]

Secondary Outcome Measures:
  • Occurence of correct spontaneous productions of the taught words during the experimental procedure [ Time Frame: Three weeks ]

Enrollment: 51
Study Start Date: July 2003
Study Completion Date: July 2007
Primary Completion Date: June 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: GP
Children with Developmental Language Impairments were enrolled in this group.
Behavioral: Word-learning
Exposure to five nonwords for three sessions of controlled interaction with the experimenter
Experimental: GC
Children with normal language development were enrolled in this group.
Behavioral: Word-learning
Exposure to five nonwords for three sessions of controlled interaction with the experimenter


Ages Eligible for Study:   36 Months to 47 Months   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • For GP subjects: - diagnosis of Language Impairment
  • enrolled in language therapy
  • age between 3:0 (years:months) and 3:11
  • For GC subjects: - normal performance in a language screening procedure
  • normal performance in an expressive vocabulary test

Exclusion Criteria:

  • For GP subjects: - hearing impairments
  • diagnosed neurological or behavioral conditions
  • major cognitive impairment
  • For GC subjects: - communication complaints from caregivers
  • history of previous enrollment in language therapy
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Please refer to this study by its identifier: NCT00607334

USP - Faculty of Medicine - Department of Physiotherapy, Communication Sciences and Disorders, Occupational Therapy
São Paulo, SP, Brazil
Sponsors and Collaborators
University of Sao Paulo
Study Chair: Debora M. Befi-Lopes, PhD University of São Paulo
Principal Investigator: Juliana P. Gândara, PhD student University of São Paulo
  More Information

Responsible Party: Debora Maria Befi-Lopes, University of São Paulo Identifier: NCT00607334     History of Changes
Other Study ID Numbers: 24061316
Study First Received: January 22, 2008
Last Updated: January 22, 2008

Keywords provided by University of Sao Paulo:
Child Language
Language Therapy

Additional relevant MeSH terms:
Language Disorders
Language Development Disorders
Communication Disorders
Neurobehavioral Manifestations
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms processed this record on May 25, 2017