… In order to better understand the relationship between the three factors of the VFI and its
individual items within the underlying trait of vocal fatigue, the Mokken Scale Analysis was …

… pathologists specialized in voice created a beta version of the VFI (version 1), an index of 21
… The final VFI of 19 items (version 2), completed by 105 patients with voice complaints and …

… fatigue (VF) is a primary vocal symptom experienced by professional voice users, such as
teachers, whose voice … utilization of the Vocal Fatigue Index (VFI), a 19-item scale in identifying …

… -fatigue groups using the Chalder Fatigue Scale score. For assessment of self-rated symptoms,
each subject was asked to complete Voice Handicap Index (VHI) and Voice Rating Scale …

… self-report tools for voice symptoms. This study aimed to determine if the concurrent and
construct validity of three visual analog scales (VASs) of voice quality and symptoms could be …

… of voice might also lead to vocal fatigue and … fatigue in patients with voice disorders was
evaluated. Participants were asked to complete the voice-related quality of life (V-RQOL) scale, …

… Given the importance of voice … fatigue index (VFI) and the voice-related quality of life (VRQOL)
with the mediating role of the dysphonia severity index (DSI) among teachers with voice …

… of the Aging Voice Index developed by … scale can measure the specific concept it is designed
to measure. To validate the Polish VFI against currently used valid and reliable voice scales…

… via another questionnaire, the Voice Handicap Index (VHI), … obtained using the Acoustic
Voice Quality Index (AVQI; see … the degree of hoarseness (G in GRBAS scale)35, 36, 37 and …

… fatigue or a tired voice. These patients primarily searched for medical help to improve their
voice… The absence of a self-evaluation scale of VF and of audio samples of a reading passage …