{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,11]],"date-time":"2026-07-11T02:22:59Z","timestamp":1783736579753,"version":"3.55.0"},"reference-count":28,"publisher":"Cambridge University Press (CUP)","issue":"8","license":[{"start":{"date-parts":[[2007,3,29]],"date-time":"2007-03-29T00:00:00Z","timestamp":1175126400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Laryngol. Otol."],"published-print":{"date-parts":[[2007,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S0022215107007177_sec1\"><jats:title>Background:<\/jats:title><jats:p>There is an increasing choice of voice outcome research tools, but good comparative data are lacking.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec2\"><jats:title>Objective:<\/jats:title><jats:p>To evaluate the reliability and validity of three voice-specific, self-reported scales.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec3\"><jats:title>Design:<\/jats:title><jats:p>Longitudinal, cohort comparison study.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec4\"><jats:title>Setting:<\/jats:title><jats:p>Two UK voice clinics: the Freeman Hospital, Newcastle upon Tyne, and the Glasgow Royal Infirmary.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec5\"><jats:title>Participants:<\/jats:title><jats:p>One hundred and eighty-one patients presenting with dysphonia.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec6\"><jats:title>Main outcome measures:<\/jats:title><jats:p>All patients completed the vocal performance questionnaire, the voice handicap index and the voice symptom scale. For comparison, each patient's voice was recorded and assessed perceptually using the grade\u2013roughness\u2013breathiness\u2013aesthenia\u2013strain scale. The reliability and validity of the three self-reported vocal performance measures were assessed in all subjects, while 50 completed the questionnaires again to assess repeatability.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec7\"><jats:title>Results:<\/jats:title><jats:p>The results of the 170 participants with completed data sets showed that all three questionnaires had high levels of internal consistency (Cronbach's alpha\u00a0=\u00a00.81\u20130.95) and repeatability (voice handicap index\u00a0=\u00a00.83; vocal performance questionnaire\u00a0=\u00a00.75; voice symptom scale\u00a0=\u00a00.63). Concurrent and criterion validity were also good, although, of the grade\u2013roughness\u2013breathiness\u2013aesthenia\u2013strain subscales, roughness was the least well correlated with the self-reported measures.<\/jats:p><\/jats:sec><jats:sec id=\"S0022215107007177_sec8\"><jats:title>Conclusion:<\/jats:title><jats:p>The vocal performance questionnaire, the voice handicap index and the voice symptom scale are all reliable and valid instruments for measuring the patient-perceived impact of a voice disorder.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s0022215107007177","type":"journal-article","created":{"date-parts":[[2007,3,29]],"date-time":"2007-03-29T07:01:15Z","timestamp":1175151675000},"page":"763-767","source":"Crossref","is-referenced-by-count":46,"title":["Optimising outcome assessment of voice interventions, I: reliability and validity of three self-reported scales"],"prefix":"10.1017","volume":"121","author":[{"given":"A L","family":"Webb","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P N","family":"Carding","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I J","family":"Deary","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K","family":"MacKenzie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"I N","family":"Steen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J A","family":"Wilson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2007,3,29]]},"reference":[{"key":"S0022215107007177_ref8","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(99)80063-0"},{"key":"S0022215107007177_ref12","doi-asserted-by":"publisher","DOI":"10.3109\/13682829209012036"},{"key":"S0022215107007177_ref24","volume-title":"Essentials of Psychological Testing","author":"Cronbach","year":"1970"},{"key":"S0022215107007177_ref28","volume-title":"Evaluating Research in Communicative Disorders","author":"Schuavetti","year":"1997"},{"key":"S0022215107007177_ref1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2273.2004.00846.x"},{"key":"S0022215107007177_ref22","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-003-0707-7"},{"key":"S0022215107007177_ref9","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(98)80063-5"},{"key":"S0022215107007177_ref18","volume-title":"Clinical Examination of Voice","author":"Hirano","year":"1981"},{"key":"S0022215107007177_ref23","volume-title":"Voice and Articulation Drillbook","author":"Fairbanks","year":"1960"},{"key":"S0022215107007177_ref5","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(99)80010-1"},{"key":"S0022215107007177_ref17","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-200111000-00009"},{"key":"S0022215107007177_ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.otohns.2004.02.048"},{"key":"S0022215107007177_ref3","doi-asserted-by":"publisher","DOI":"10.1044\/1058-0360.0603.66"},{"key":"S0022215107007177_ref4","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/S0194-5998(99)70399-2","article-title":"Validation of a voice outcome survey for unilateral vocal cord paralysis","volume":"120","author":"Gliklich","year":"1999","journal-title":"Otolaryngol Head Neck Surg"},{"key":"S0022215107007177_ref6","doi-asserted-by":"publisher","DOI":"10.1044\/1092-4388(2001\/040)"},{"key":"S0022215107007177_ref7","doi-asserted-by":"publisher","DOI":"10.1111\/j.0307-7772.2004.00775.x"},{"key":"S0022215107007177_ref15","doi-asserted-by":"publisher","DOI":"10.1177\/000348940010900906"},{"key":"S0022215107007177_ref10","doi-asserted-by":"publisher","DOI":"10.1016\/S0030-6665(05)70262-0"},{"key":"S0022215107007177_ref11","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2273.1997.00855.x"},{"key":"S0022215107007177_ref13","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.124.2.143"},{"key":"S0022215107007177_ref14","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(00)80017-X"},{"key":"S0022215107007177_ref16","doi-asserted-by":"publisher","DOI":"10.1001\/archotol.127.9.1083"},{"key":"S0022215107007177_ref19","doi-asserted-by":"publisher","DOI":"10.1159\/000266220"},{"key":"S0022215107007177_ref20","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(97)80026-4"},{"key":"S0022215107007177_ref21","doi-asserted-by":"publisher","DOI":"10.1016\/S0892-1997(99)80006-X"},{"key":"S0022215107007177_ref25","doi-asserted-by":"publisher","DOI":"10.1007\/BF00422218"},{"key":"S0022215107007177_ref26","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.86.2.420"},{"key":"S0022215107007177_ref27","volume-title":"Introduction to Psychological Measurement","author":"Nunally","year":"1970"}],"container-title":["The Journal of Laryngology &amp; 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