Lydia Elaine Stappenbeck, Sylva Bartel, Jörg Edgar Bohlender, Meike Brockmann-Bauser
{"title":"德国嗓音疲劳指数在成人嗓音疾病患者中的有效性和可靠性","authors":"Lydia Elaine Stappenbeck, Sylva Bartel, Jörg Edgar Bohlender, Meike Brockmann-Bauser","doi":"10.1044/2024_JSLHR-23-00481","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>Vocal fatigue-related symptoms, frequent in patients with voice disorders, are reliably quantifiable with the Vocal Fatigue Index (VFI) in several languages. The main aim of this work was to investigate the content and construct validity of the German Vocal Fatigue Index (VFI-D) by comparison with the German Voice Handicap Index 9 international (VHI9i) and the Vocal Tract Discomfort Scale (VTD). Moreover, the scale and retest reliability were investigated.</p><p><strong>Method: </strong>In a prospective cohort study at two tertiary care hospitals, 93 adults with all types of voice complaints filled out the VFI-D, the VHI-9i, and the VTD. Eighty-one adults (<i>M</i><sub>age</sub> = 53.5 years, <i>SD</i> = 15.7) completed them one time, and additional 12 patients (<i>M</i><sub>age</sub> = 53.8 years, <i>SD</i> = 15.6) did a test-retest, completed them twice at an interval of 1 week. The validity was assessed by Spearman's rho and Mokken scaling and the reliability by a factor analysis and a two-tailed <i>t</i> test.</p><p><strong>Results: </strong>Mokken scaling has proven the VFI-D as one-dimensional questionnaire (one cluster, <i>r</i> = .95). All VFI-D items could be assigned to one of three factors according to principal component and principal axis factor analysis. Although Factor 1 related best to the VHI9i (∅ <i>r</i><sub>s</sub> = .76) and Factor 2 to the VTD (∅ <i>r</i><sub>s</sub> = .74), Factor 3 correlated moderately with the VHI9i (<i>r</i><sub>s</sub> = .34) and weakly with the VTD (<i>r</i><sub>s</sub> = .25). Results from the first and second VFI-D completion agreed strongly (<i>t</i> = -1.78, <i>p</i> = .10).</p><p><strong>Conclusions: </strong>In this study, the content and construct validity of the VFI-D were confirmed. Also, both scale reliability with identical factors as those in the original study and retest reliability were verified. The VHI9i and VTD were highly indicative of VFI-D Factors 1 and 2, respectively. No correlation between Factor 3 and the other questionnaires was determined. Future research should evaluate which characteristics are specific to vocal fatigue versus general voice disorder-related symptoms.</p>","PeriodicalId":51254,"journal":{"name":"Journal of Speech Language and Hearing Research","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Validity and Reliability of the German Vocal Fatigue Index in Adults With Voice Disorders.\",\"authors\":\"Lydia Elaine Stappenbeck, Sylva Bartel, Jörg Edgar Bohlender, Meike Brockmann-Bauser\",\"doi\":\"10.1044/2024_JSLHR-23-00481\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>Vocal fatigue-related symptoms, frequent in patients with voice disorders, are reliably quantifiable with the Vocal Fatigue Index (VFI) in several languages. The main aim of this work was to investigate the content and construct validity of the German Vocal Fatigue Index (VFI-D) by comparison with the German Voice Handicap Index 9 international (VHI9i) and the Vocal Tract Discomfort Scale (VTD). Moreover, the scale and retest reliability were investigated.</p><p><strong>Method: </strong>In a prospective cohort study at two tertiary care hospitals, 93 adults with all types of voice complaints filled out the VFI-D, the VHI-9i, and the VTD. Eighty-one adults (<i>M</i><sub>age</sub> = 53.5 years, <i>SD</i> = 15.7) completed them one time, and additional 12 patients (<i>M</i><sub>age</sub> = 53.8 years, <i>SD</i> = 15.6) did a test-retest, completed them twice at an interval of 1 week. The validity was assessed by Spearman's rho and Mokken scaling and the reliability by a factor analysis and a two-tailed <i>t</i> test.</p><p><strong>Results: </strong>Mokken scaling has proven the VFI-D as one-dimensional questionnaire (one cluster, <i>r</i> = .95). All VFI-D items could be assigned to one of three factors according to principal component and principal axis factor analysis. Although Factor 1 related best to the VHI9i (∅ <i>r</i><sub>s</sub> = .76) and Factor 2 to the VTD (∅ <i>r</i><sub>s</sub> = .74), Factor 3 correlated moderately with the VHI9i (<i>r</i><sub>s</sub> = .34) and weakly with the VTD (<i>r</i><sub>s</sub> = .25). Results from the first and second VFI-D completion agreed strongly (<i>t</i> = -1.78, <i>p</i> = .10).</p><p><strong>Conclusions: </strong>In this study, the content and construct validity of the VFI-D were confirmed. Also, both scale reliability with identical factors as those in the original study and retest reliability were verified. 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Validity and Reliability of the German Vocal Fatigue Index in Adults With Voice Disorders.
Purpose: Vocal fatigue-related symptoms, frequent in patients with voice disorders, are reliably quantifiable with the Vocal Fatigue Index (VFI) in several languages. The main aim of this work was to investigate the content and construct validity of the German Vocal Fatigue Index (VFI-D) by comparison with the German Voice Handicap Index 9 international (VHI9i) and the Vocal Tract Discomfort Scale (VTD). Moreover, the scale and retest reliability were investigated.
Method: In a prospective cohort study at two tertiary care hospitals, 93 adults with all types of voice complaints filled out the VFI-D, the VHI-9i, and the VTD. Eighty-one adults (Mage = 53.5 years, SD = 15.7) completed them one time, and additional 12 patients (Mage = 53.8 years, SD = 15.6) did a test-retest, completed them twice at an interval of 1 week. The validity was assessed by Spearman's rho and Mokken scaling and the reliability by a factor analysis and a two-tailed t test.
Results: Mokken scaling has proven the VFI-D as one-dimensional questionnaire (one cluster, r = .95). All VFI-D items could be assigned to one of three factors according to principal component and principal axis factor analysis. Although Factor 1 related best to the VHI9i (∅ rs = .76) and Factor 2 to the VTD (∅ rs = .74), Factor 3 correlated moderately with the VHI9i (rs = .34) and weakly with the VTD (rs = .25). Results from the first and second VFI-D completion agreed strongly (t = -1.78, p = .10).
Conclusions: In this study, the content and construct validity of the VFI-D were confirmed. Also, both scale reliability with identical factors as those in the original study and retest reliability were verified. The VHI9i and VTD were highly indicative of VFI-D Factors 1 and 2, respectively. No correlation between Factor 3 and the other questionnaires was determined. Future research should evaluate which characteristics are specific to vocal fatigue versus general voice disorder-related symptoms.
期刊介绍：
Mission: JSLHR publishes peer-reviewed research and other scholarly articles on the normal and disordered processes in speech, language, hearing, and related areas such as cognition, oral-motor function, and swallowing. The journal is an international outlet for both basic research on communication processes and clinical research pertaining to screening, diagnosis, and management of communication disorders as well as the etiologies and characteristics of these disorders. JSLHR seeks to advance evidence-based practice by disseminating the results of new studies as well as providing a forum for critical reviews and meta-analyses of previously published work.
Scope: The broad field of communication sciences and disorders, including speech production and perception; anatomy and physiology of speech and voice; genetics, biomechanics, and other basic sciences pertaining to human communication; mastication and swallowing; speech disorders; voice disorders; development of speech, language, or hearing in children; normal language processes; language disorders; disorders of hearing and balance; psychoacoustics; and anatomy and physiology of hearing.
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