Abstract
Objective: 1) Evaluate the validity of the translated and culturally adapted version of the Singing Voice Handicap Index (SVHI) into Portuguese from Portugal. 2) Add another language to the list of the translated versions of this widely used voice questionnaire for singers.
Method: In a parallel group design, 50 singers with different laryngeal pathologies and 25 singers with no laryngeal pathology completed the Portuguese version of the SVHI. Internal consistency reliability, test-retest reliability and construct validity were assessed as well as group differences.
Results: Statistical analyses demonstrated high internal consistency reliability (Cronbach Alpha r = 0.93), test-retest reliability (Spearman correlation = 0.84, P < .01,) and construct validity (Spearman correlation = 0.62, P < .01) values. The control group received significantly lower scores than the pathological group (P < .05).
Conclusion: The Portuguese version of the SVHI was shown to be a reliable and valid measure of voice handicap among Portuguese singers and can be added to the list of translated versions of this widely accepted and originally created American English voice evaluation instrument.
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