Análise Fatorial Confirmatória do Protocolo Índice de Desvantagem Vocal

Abstract

Self-assessment in voice is an assessment based on the patient's perception of his voice, provides crucial information for voice diagnosis, and assists in therapeutic monitoring. The Voice Handicap Index (VHI) is the most widely distributed self assessment protocol in the voice field, and assesses the disadvantages of dysphonia. The study intends to analyze the factorial structure of the Protocol Voice Handicap Index (VHI) in the Brazilian Portuguese version. It presents a descriptive, documentary and transversal design. Protocols were evaluated of 483 individuals that are part of the database of the voice laboratory of a higher education institution. Most of the participants were female, with a mean age of 40.08 years (± 15.03), single marital status, with a full university degree, non voice professionals and natives from the Northeast region. A factorial analysis of the VHI was carried out in order to verify if its domains indicated reliable and valid representations. It was possible to observe that all factorial loads of the emotional domain correlated with their respective factor, most of the items in the organic domain obtained a factorial load in their origin factor, except for item eight, which had a correlation with the emotional domain. Only four items of the functional domain continued with factorial loads correlated to their factor, and six items moved to the emotional domain. Thus, all items that did not correlate with their domain of origin had a correlation with the emotional domain, being thus formed by 17 items, the organic with 9 and the functional with 4 items.