Cross-Cultural Adaptation and Validation of the Vocal Fatigue Index into Persian

Journal of Voice : Official Journal of the Voice Foundation
Ehsan NaderifarChayadevie Nanjundeswaran

Abstract

The aim of the present study was the cross-cultural adaptation and validation of the Vocal Fatigue Index (VFI) in Persian. The English version of the VFI was translated to Persian using the guidelines of International Quality of Life Assessment. Eighty participants with voice disorders and 50 healthy controls without any voice disorders completed the Persian version of the VFI. The 80 participants with voice disorders completed the VFI a second time a week from the initial completion to evaluate test-retest reliability. The VFI measure demonstrated a strong internal consistency. Cronbach alpha coefficient was 0.95 for tiredness and avoidance of voice use, 0.86 for physical discomfort and 0.83 for improvement or lack thereof of symptoms with voice rest. VFI also showed a high test-retest reliability (r = 0.75-0.89). The Persian version of the VFI is considered to be a valid and reliable questionnaire for identifying individuals with probable vocal fatigue. The VFI can be utilized in clinics across Iran in the assessment and treatment of individuals with vocal fatigue.

Citations

Sep 7, 2019·Journal of Voice : Official Journal of the Voice Foundation·Ben Barsties V LatoszekSimone Graf
Mar 6, 2021·Journal of Voice : Official Journal of the Voice Foundation·Ben Barsties V LatoszekKatrin Neumann
Feb 20, 2021·Journal of Voice : Official Journal of the Voice Foundation·Negin MoradiFatemeh Hosseini Beidokhti
May 18, 2020·Journal of Voice : Official Journal of the Voice Foundation·Susan Abi Thomas, Santosh Maruthy
May 13, 2021·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Hassan KhoramshahiShayan Ahmadi
Feb 26, 2020·Journal of Voice : Official Journal of the Voice Foundation·Sreya SrinivasPrakash Boominathan
Aug 5, 2021·Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)·Seyede Dena Ahmadi BakhshSasan Razmjoo
Mar 19, 2020·Journal of Voice : Official Journal of the Voice Foundation·Shenbagavalli MahalingamSreya Srinivas

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