title: Translation and preliminary evaluation of the Brazilian Portuguese version of the Transgender Voice Questionnaire for male-to-female transsexuals.
abstract: OBJECTIVE
  To contribute to the development of a Brazilian Portuguese language version of the vocal self-assessment questionnaire, Transsexual Voice Questionnaire: Male-to-Female (TVQ:MtF), and to evaluate the questionnaire for use in Brazil.
  
  
  METHODS
  The research was divided into two parts: (1) translation and adaptation of the questionnaire (TVQ:MtF) and demographic form and (2) preliminary study of the psychometric properties (internal consistency and test-retest reliability) of the adapted version of the questionnaire. For the translation and adaptation, the following steps were taken: translation, reconciliation, back-translation, harmonization, and pilot test. The TVQ:MtF questionnaire and the demographic form were applied to 13 male-to-female transsexuals, aged between 21 and 47 years. The participants agreed to answer the TVQ:MtF on two occasions (test and retest), with an optimal interval of 30 days.
  
  
  RESULTS
  Two psychometric properties were investigated: internal consistency and test-retest reliability. High levels of internal consistency (in both test (α=0.911) and retest (α=0.952) conditions) and reliability (with an average ICC=0.957 (95%CI 0.916-0.984)), were found.
  
  
  CONCLUSIONS
  The TVQ:MtF is an appropriate instrument for vocal self-assessment of male-to-female transsexual patients, which can be recommended for clinical and research goals.
authors.affiliation: Prefeitura Municipal de Itaguaí, Itaguaí, RJ, Brazil.
authors.forename: Heloisa Helena de Almeida Neves Matta dos
authors.initials: HH
authors.lastname: Santos
authors.affiliation: Department of Specific Training in Speech-Language Pathology and Audiology, Universidade Federal Fluminense, de Janeiro, RJ, Brazil.
authors.forename: Andréa Gomes de Oliveira
authors.initials: AG
authors.lastname: Aguiar
authors.affiliation: Department of Specific Training in Speech-Language Pathology and Audiology, Universidade Federal Fluminense, de Janeiro, RJ, Brazil.
authors.forename: Heidi Elisabeth
authors.initials: HE
authors.lastname: Baeck
authors.affiliation: Universidade Veiga de Almeida, Rio de Janeiro, RJ, Brazil.
authors.forename: John
authors.initials: J
authors.lastname: Van Borsel
mesh_terms: D000328:Adult; D001938:Brazil; D003431:Cross-Cultural Comparison; D004522:Educational Status; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D011594:Psychometrics; D015203:Reproducibility of Results; D012647:Self-Assessment; D013067:Speech Perception; D013066:Speech-Language Pathology; D011795:Surveys and Questionnaires; D063106:Transgender Persons / Q000523:psychology; D014177:Translations; D014189:Transsexualism; D014833:Voice Quality; D055815:Young Adult