NCT00013364

Brief Summary

The effects of talker variability will be investigated with four groups of listeners (young normal-hearing; old normal-hearing; young hearing-impaired; old hearing-impaired). Experimental conditions will include between-talker differences, speaking rate, lexical difficult and semantic/linguistic context. A preliminary experiment will evaluate the relative merit of adaptive vs fixed-level methods of stimulus presentation.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
80

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Apr 1998

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

April 1, 1998

Completed
2.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2001

Completed
13 days until next milestone

First Submitted

Initial submission to the registry

March 14, 2001

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 16, 2001

Completed
Last Updated

January 21, 2009

Status Verified

January 1, 2001

First QC Date

March 14, 2001

Last Update Submit

January 20, 2009

Conditions

Hearing Impaired

Keywords

Hearing loss, speech recognition

Interventions

Talker variabilityBEHAVIORAL

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Hearing impaired

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Study Sites (1)

VAMC, West Los Angeles

Los Angeles, California, United States

Location

MeSH Terms

Conditions

Hearing Loss

Condition Hierarchy (Ancestors)

Hearing DisordersEar DiseasesOtorhinolaryngologic DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • John Fryer, Ph.D., Program Analyst

    Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service

  • Nancy Roceleau, Program Analyst

    Program Analysis and Review Section (PARS), Rehabilitation Research & Development Service

Study Design

Study Type
observational
Time Perspective
PROSPECTIVE
Sponsor Type
FED

Study Record Dates

First Submitted

March 14, 2001

First Posted

March 16, 2001

Study Start

April 1, 1998

Study Completion

March 1, 2001

Last Updated

January 21, 2009

Record last verified: 2001-01

Locations

US(1)