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American Journal of Speech-Language Pathology Vol.17 60-80 February 2008. doi:10.1044/1058-0360(2008/006)
© American Speech-Language-Hearing Association
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Psychometric Evaluation of Condition-Specific Instruments Used to Assess Health-Related Quality of Life, Attitudes, and Related Constructs in Stuttering

Duska M. Franic
Anne K. Bothe
The University of Georgia, Athens

Contact author: Duska M. Franic, Department of Clinical and Administrative Pharmacy, The University of Georgia, Athens, GA 30602. E-mail: dfranic{at}mail.rx.uga.edu.

Purpose: This study assessed the psychometric properties of instruments used to measure constructs similar to stuttering-specific health-related quality of life. In the stuttering literature, most such instruments were originally intended to measure speakers' attitudes about, or reactions to, their stuttering.

Method: Seventeen instruments were identified through a comprehensive literature search. Based on specific criteria from previous publications, 10 were selected for complete review and evaluated using 15 measurement standards related to conceptual model, reliability, validity, responsiveness, interpretability (norms), burden (respondent and administrative), depth, and versatility.

Results: None of the available instruments met more than 8 of the 15 measurement standards assessed.

Conclusions: Available instruments do not satisfy psychometric criteria for use in individual or group-level decision making, either as measures of their originally intended constructs or as measures of health-related quality of life. Problems with the conceptual model, reliability, validity, and responsiveness of available instruments, as well as the lack of comprehensive normative data, combine to suggest the need for development and validation of a stuttering-specific health-related quality of life measure.

Key Words: stuttering, responsiveness, attitude, life satisfaction, quality of life


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