title: Cross-cultural adaptation and validation of the voice-related quality of life into Persian.
abstract: The purpose of this study was to adapt and determine reliability, validity, and responsiveness of voice-related quality of life (V-RQOL) for Persian. A total of 300 patients with voice disorders participated in the study. Also, 116 people without any voice disorders volunteered to participate in the study as a control group. All participants filled in the Persian version of V-RQOL. The reliability, validity, and responsiveness were studied. Results demonstrated that the discrimination coefficient is significant for all items. The V-RQOL measure showed a strong internal consistency (Cronbach alpha coefficient = 0.88-0.91) and a good test-retest reliability (r = 0.93-0.95). Pre- and post-treatment results showed a significant responsiveness (functioning, 0.000; social-emotional, 0.001; and total, 0.000). Effect size range of 1.26-1.59 and the standardized response mean range of 1.07-1.41 were obtained for V-RQOL. It seems that the Persian version of V-RQOL is valid, reliable, and responsive to change, and this questionnaire can be used for completing voice evaluation for patients with dysphonia.
authors.affiliation: Musculoskeletal Rehabilitation Research Center, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Negin
authors.initials: N
authors.lastname: Moradi
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Nader
authors.initials: N
authors.lastname: Saki
authors.affiliation: Department of Speech Therapy, School of Rehabilitation Sciences, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Ozra
authors.initials: O
authors.lastname: Aghadoost
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Soheila
authors.initials: S
authors.lastname: Nikakhlagh
authors.affiliation: Musculoskeletal Rehabilitation Research Center, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Electronic address: majidsoltanist@gmail.com.
authors.forename: Majid
authors.initials: M
authors.lastname: Soltani
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Vita
authors.initials: V
authors.lastname: Derakhshandeh
authors.affiliation: Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Naderifar
authors.affiliation: University of Tehran, Tehran, Iran.
authors.forename: Behrooz
authors.initials: B
authors.lastname: Mahmoodi Bakhtiari
authors.affiliation: Department of Speech Therapy, University of Social Welfare and Rehabilitation Science, Tehran, Iran.
authors.forename: Shiva
authors.initials: S
authors.lastname: Javadipour
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D003466:Cultural Characteristics; D055154:Dysphonia / Q000175:diagnosis* / Q000503:physiopathology / Q000523:psychology; D004644:Emotions; D005260:Female; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D012919:Social Behavior; D011795:Surveys and Questionnaires; D014175:Translating; D014833:Voice Quality; D055815:Young Adult
keywords: Dysphonia; Persian; Quality of life; Voice disorder