Validation of the Arabic version of vocal tract discomfort scale.

To explore the internal consistency, criterion validity, and discriminative validity of the Arabic version of the vocal tract discomfort scale (VTDS-Arab); and to establish cut-off scores for the VTDS-Arab. An overall of 202 participants (31 patients with voice disorders of organic and functional causes, and 171 healthy subjects, mean age 25.3 ± 6.