Validation of the Self-assessment of Communication Competence (SACCom) in Brazilian Portuguese through item response theory

Ribeiro, Vanessa Veis; Santos, Marcos Antonio da Cunha; Almeida, Anna Alice Figueiredo de; Behlau, Mara

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Campo DC	Valor	Idioma
dc.contributor.author	Ribeiro, Vanessa Veis	-
dc.contributor.author	Santos, Marcos Antonio da Cunha	-
dc.contributor.author	Almeida, Anna Alice Figueiredo de	-
dc.contributor.author	Behlau, Mara	-
dc.date.accessioned	2022-11-29T19:24:13Z	-
dc.date.available	2022-11-29T19:24:13Z	-
dc.date.issued	2022-09-08	-
dc.identifier.citation	RIBEIRO, Vanessa Veis et. al. Validation of the Self-assessment of Communication Competence (SACCom) in Brazilian Portuguese through item response theory. Journal of Voice, 2022. DOI 10.1016/j.jvoice.2022.07.013. Disponível em: https://www.sciencedirect.com/science/article/pii/S0892199722002168?via%3Dihub. Acesso em: 29 nov. 2022.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/45231	-
dc.language.iso	Inglês	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Validation of the Self-assessment of Communication Competence (SACCom) in Brazilian Portuguese through item response theory	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Validação	pt_BR
dc.subject.keyword	Teoria da resposta ao item	pt_BR
dc.subject.keyword	Autoavaliação da Competência de Comunicação (SACCom)	pt_BR
dc.identifier.doi	https://doi.org/10.1016/j.jvoice.2022.07.013	pt_BR
dc.relation.publisherversion	https://www.sciencedirect.com/science/article/pii/S0892199722002168?via%3Dihub	pt_BR
dc.description.abstract1	Summary: Objective. To evaluate the validity of the Self-assessment of Communication Competence − SACCom by analyzing the communication competency of adult individuals using the item response theory (IRT). Methods. Overall, 778 individuals who responded to SACCom participated in this study. The initial version consisted of 20 polytomous items regarding communication skills. Polytomous answer keys to each item were ordered as follows: 1 - no, 2 - more or less, and 3 - yes. The IRT and the gradual response model, a 2-parameter logistic model for polytomous items, were used for validation. Results. Due to problems in the preliminary analysis using the item characteristic curve (ICC), answer keys to SACCom items were reorganized in an ordinal dichotomous way. Response 1 was coded as 0 - no, while responses 2 and 3 were coded as 1 - yes. Item 9 of the ICC was problematic and did not add information to the instrument; hence, this item was excluded. SACCom, in its dichotomous format with 19 items, was unidimensional according to the eigenvalues graph and tetrachoric correlation analysis. The Cronbach’s alpha coefficient showed an internal consistency value of 0.711. All item-total correlations were greater than 0.284. Item discrimination parameters ranged from a = 0.563 to a = 1.505, and the difficulty of the items ranged between b = −2.725 and b = 0.612. The likelihood ratio test showed that the model without restrictions best fit the data. ICC gleaned more information for individuals with lower communication skills. Conclusion. The 19-item, dichotomous SACCom is valid for the analysis of communication skills according to the IRT.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-3089-6085	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-5228-8822	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-9119-5629	pt_BR
dc.description.unidade	Faculdade UnB Ceilândia (FCE)	pt_BR
dc.description.unidade	Curso de Fonoaudiologia (FCE-FONO)	pt_BR
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