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Validity, internal consistency, and test-retest reliability of the Montenegrin 10-item Voice Handicap Index Cover

Validity, internal consistency, and test-retest reliability of the Montenegrin 10-item Voice Handicap Index

By: Elvir Zvrko and  Muhedin Kadić  
Open Access
|Jul 2022

Abstract

The purpose of the this cross-sectional study was to assess clinical validity, internal consistency, and test-retest reliability of the adapted Montenegrin translation of the Voice Handicap Index 10 (VHI-10). It included 50 patients with voice disorders, divided into three subgroups according disease aetiology: structural, neurological, and functional and a control group of 50 vocally healthy participants. Mean patient VHI-10 score of 21.1±7.6 was significantly higher than the 2.3±2.5 score of controls (p<0.001). Each of the three patient subgroups also scored significantly higher than control (p<0.001). Spearman’s rank correlation coefficient of 0.90 (p<0.001) indicated a very strong correlation between the Montenegrin VHI-10 score and self-reported perception of the severity of voice disorder. Excellent internal consistency was found in the patient group, with a Cronbach’s alpha of 0.94. Test-retest reliability was also excellent, with intra class correlation coefficient of 0.98. The translated Montenegrin version of VHI-10 is a valid, reliable, and clinically useful tool for self-assessment of the severity of voice disorders in individuals with voice problems in daily practice and in research projects.

DOI: https://doi.org/10.2478/aiht-2022-73-3624 | Journal eISSN: 1848-6312 | Journal ISSN: 0004-1254
Language: English, Croatian, Slovenian
Page range: 143 - 147
Submitted on: Jan 1, 2022
Accepted on: May 1, 2022
Published on: Jul 7, 2022
Published by: Institute for Medical Research and Occupational Health
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2022 Elvir Zvrko, Muhedin Kadić, published by Institute for Medical Research and Occupational Health
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.