RESUMO
OBJECTIVE: this study aims to verify the stages of evidence of validity of the voice-adapted present perceived control scale (V-APPCS) in its translated and cross-culturally adapted version for the Brazilian Portuguese "Voice-Adapted Present Perceived Control Scale" and to estimate the psychometric measurements of the properties of its items based on the item response theory (IRT). METHODS: the instrument underwent a process of translation and cross-cultural adaptation for the Brazilian Portuguese, the process was carried out by two qualified translators, native in the destination language, and fluent in the language and culture of origin. The first translated version of the protocol was forwarded to a back-translation, performed by a third bilingual Brazilian translator. The translations were analyzed and compared by a committee composed of five speech therapists who are specialists in voice and with proficiency in the English language. The empirical study used data from 168 individuals, 127 had voice problems and 41 vocally healthy ones. For the stages of validity evidence, the following analyses were performed: Cronbach's alpha, exploratory factor analysis, confirmatory factor analysis and IRT. RESULTS: The stages of translation and cross-cultural adaptation allowed linguistic adjustments to be made so that the items were understandable and suitable for use in Brazil. The adequacy, structure, and application of the items were confirmed through the application of the final version of the scale in twenty individuals in a real context. The instrument in its Brazilian version presented good internal consistency, with bifactorial structure the exploratory factor analysis, besides presenting satisfactory values in the adjustment indexes of the model, confirming the structure of the confirmatory factor Analysis. The IT was applied to evaluate the parameters discrimination (a) and difficulty (b) of the items of the instrument; item 5 "I have control over my day-to-day reactions to the voice problem." Presented itself as a more discriminative item and item 8 "My reaction to the voice problem is not under my control." As an item of greater difficulty. CONCLUSION: The V-APPCS, translated, cross-culturally adapted, and validated, is robust and adequate to represent the construct in the Brazilian versions.
RESUMO
OBJECTIVE: To investigate the psychometric properties of the Voice-Related Quality of Life (V-RQOL) questionnaire in Brazilian Portuguese by assessing its reliability and conducting exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). METHODS: This research was carried out in two stages: (1) a document-based retrospective approach and (2) a field study step. The study included 566 dysphonic and vocally healthy individuals. For data collection, the Vocal Screening Protocol and the V-RQOL questionnaire were used, and these measures were later statistically analyzed through descriptive analysis, reliability tests, CFA, and EFA. Ethical issues were considered. RESULTS: A Cronbach's alpha coefficient of 0.916 was observed, indicating good internal consistency for the V-RQOL questionnaire. The item-total correlation coefficient indicated that the items had good correlation with each other and with the construct, with values higher than 0.30. EFA was performed based on the Kaiser-Meyer-Olkin index and Bartlett's test of sphericity, which indicated the adequacy of the tested sample. The items presented commonality of >0.30 and satisfactory factor loadings, resulting in a single factor. The unifactorial structure of the V-RQOL questionnaire was confirmed by CFA. CONCLUSION: EFA and CFA indicated that a single factor should be adopted to encompass all the items of the V-RQOL questionnaire.
Assuntos
Qualidade de Vida , Brasil , Análise Fatorial , Humanos , Valor Preditivo dos Testes , Psicometria , Reprodutibilidade dos Testes , Estudos Retrospectivos , Inquéritos e QuestionáriosRESUMO
OBJECTIVE: To verify the relationship between self-regulation and voice behavior according to national and international literature. METHODS: A literature survey was performed using the PubMed, LILACS, and SciELO databases. The search terms used were the following: self-regulation, self-control, combined with voice, voice disorders, and dysphonia, in Portuguese, English, and Spanish. Articles that addressed self-regulation and voice behavior or voice disorders published in English, Spanish, or Portuguese were included, without restriction of date. The variables preselected for the data organization were authors, database, country, impact factor, journal, type of study, sample size, sample characteristics, methods for data collection, group comparison, objective, and outcome. RESULTS: A total of 10,176 articles were identified in the databases, of which 10 were selected based on title, read in full, and kept for data analysis. The studies were found predominantly in American journals and were published between 2013 and 2019. The United States published most articles, and the predominant methodological aspect was observational and cross-sectional. CONCLUSION: Despite the small number of articles, the studies analyzed can show self-regulation as an important factor in vocal behavior and call attention to its performance in voice disorders.
Assuntos
Disfonia , Autocontrole , Voz , Estudos Transversais , HumanosRESUMO
INTRODUCTION: Evaluating the relationship among teachers' voice symptoms, perceived voice control, and common mental disorders (CMDs) might contribute to the understanding of the relationship between vocal wear and the teacher well-being. The understanding of this relationship may also help in taking more informed clinical decisions in voice rehabilitation when considering possible perceived voice control difficulties and the need to develop voice self-control strategies. OBJECTIVE: The aim of this study was to determine the voice symptoms, perceived voice control, and CMDs in public elementary and secondary school teachers, and to analyze the relationships among these variables. METHODS: The study included 85 public elementary and secondary school teachers of both genders. Four instruments were used to measure the variables: an identification and characterization questionnaire, the Voice Symptom Scale, the Present Perceived Control of Voice scale, and the Self-Reporting Questionnaire. RESULTS: A significant correlation between voice symptoms and CMDs was found, along with correlations between the emotional domain of the Voice Symptom Scale and teachers' ages and years of teaching. A negative correlation between CMDs and voice self-control was also observed. CONCLUSIONS: Teachers with voice symptoms had more CMD symptoms, and as the number of mental disorder symptoms increased, voice self-control decreased.