NCT00547833

Brief Summary

Children with language-learning disabilities (LLD) have language and reading skills that are weaker than those of typically developing children. In the school-age years, reading is a primary means of exposure to new vocabulary for typically developing children. Although these children would not be expected to master a new word through a single exposure to it in text, children show evidence of partial word knowledge growth (e.g., Wagovich \& Newhoff, 2004). The purpose of this project is to characterize the partial word knowledge growth of children with LLD, in comparison to children with typical language skills. Five forms of partial word knowledge (e.g., orthographic, word discrimination, syntactic, emotional content, and general semantic domain knowledge) are being measured. The study's hypotheses are that children with LLD, like typically developing peers, will demonstrate partial word knowledge growth from exposure to unfamiliar words in text, but that they will show a different pattern of growth across the five forms of partial word knowledge being assessed.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
81

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started May 2006

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

May 1, 2006

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

October 17, 2007

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 23, 2007

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
Last Updated

October 4, 2016

Status Verified

September 1, 2016

Enrollment Period

3.6 years

First QC Date

October 17, 2007

Last Update Submit

September 30, 2016

Conditions

Keywords

language disorderslanguage learning disabilitiesvocabularyreading

Outcome Measures

Primary Outcomes (1)

  • Percent words learned for each of 5 partial word knowledge types

    2 weeks

Study Arms (3)

Experimental

Children with language-learning disabilities reading at approximately a 6th grade level

Age-Matched

Typical language learners each of whom is pair match to an experimental participant by age and gender.

Language-Matched

Typical language learners, each of whom is pair-matched to an experimental participant by reading comprehension skills and gender.

Eligibility Criteria

Age12 Years - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Community Sample

You may qualify if:

  • test scores indicating language and/or reading difficulties
  • reading at approximately a 6th grade level
  • nonverbal cognitive screening within normal limits
  • hearing screening within normal limits

You may not qualify if:

  • history of neurological conditions such as seizure disorder or TBI
  • history of emotional/behavior disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Univ. of Missouri Dept. of Communication Science & Disorders

Columbia, Missouri, 65211, United States

Location

MeSH Terms

Conditions

Language Disorders

Condition Hierarchy (Ancestors)

Communication DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Stacy A Wagovich, PhD

    University of Missouri-Columbia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 17, 2007

First Posted

October 23, 2007

Study Start

May 1, 2006

Primary Completion

December 1, 2009

Study Completion

December 1, 2009

Last Updated

October 4, 2016

Record last verified: 2016-09

Data Sharing

IPD Sharing
Will not share

Locations