Validity and reliability of the Portuguese version of Mandibular Function Impairment Questionnaire

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dc.contributor.authorCampos, Juliana Alvares Duarte Bonini [UNESP]
dc.contributor.authorCarrascosa, A. C. [UNESP]
dc.contributor.authorMaroco, J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInst Univ
dc.contributor.institutionUnidade Invest Psicol Saude
dc.date.accessioned2014-05-20T15:30:25Z
dc.date.available2014-05-20T15:30:25Z
dc.date.issued2012-05-01
dc.description.abstractThe aim of this study is to evaluate the validity and reliability of the Mandibular Function Impairment Questionnaire (MFIQ) (Portuguese version). Face and content validity of the Portuguese version were performed. To assess reproducibility of the data gathered with MFIQ, it was applied to 62 individuals who completed the questionnaire on two occasions. Validity and reliability of the data gathered with MFIQ were evaluated in a sample of 249 patients. Construct-related validity was assessed through factorial validity (by means of a confirmatory factor analysis), and convergent and discriminant validities were assessed, respectively, by the average variance extracted (AVE), composite reliability (CC) and bivariate correlations between factors. The internal consistency was estimated by the standardised Cronbachs alpha coefficient (a) and reproducibility by the intra-class correlation coefficient (ICC). All the items of MFIQ showed content validity. Reproducibility was excellent in both the functional capacity dimension (D1) (ICCD1 = 0.895, 95% CI = 0.832 to 0.935) and the feeding dimension (D2) (ICCD2 = 0.825, 95% CI = 0.726 to 0.891). Items 1, 2, 6 and 7 of D1 had factor weights below the desired cut-off (0.5), and overall fit of the original bifactorial structure of the MFIQ was poor [(confirmatory fit index) CFI = 0.850, (goodness of fit index) GFI = 0.781, (root mean square error of approximation) RMSEA = 0.118]. Thus, these items were excluded, and the new, reduced version of the MFIQ showed good fit (CFI = 0.933, GFI = 0.879, RMSEA = 0.099). The convergent validity was adequate (AVE = 0.5, CC = 0.7) for both factors. However, their discriminant validity was low (AVED1 = 0.51 and AVED2 = 0.66 < ?2D1D2 = 0.70). The internal consistency was excellent (aD1 = 0.874; aD2 = 0.918). The Portuguese version of the reduced MFIQ produced data with good validity and reliability.en
dc.description.affiliationUniv Estadual Paulista UNESP, Fac Odontol Araraquara SP, Araraquara, SP, Brazil
dc.description.affiliationUniv Estadual Paulista UNESP, Fac Ciencias Farmaceut Araraquara SP, São Paulo, Brazil
dc.description.affiliationInst Univ, ISPA, Dept Estat, Lisbon, Portugal
dc.description.affiliationUnidade Invest Psicol Saude, Lisbon, Portugal
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Fac Odontol Araraquara SP, Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista UNESP, Fac Ciencias Farmaceut Araraquara SP, São Paulo, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 09/11153-7
dc.format.extent377-383
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2842.2011.02276.x
dc.identifier.citationJournal of Oral Rehabilitation. Malden: Wiley-blackwell, v. 39, n. 5, p. 377-383, 2012.
dc.identifier.doi10.1111/j.1365-2842.2011.02276.x
dc.identifier.issn0305-182X
dc.identifier.urihttp://hdl.handle.net/11449/39801
dc.identifier.wosWOS:000302614900008
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofJournal of Oral Rehabilitation
dc.relation.ispartofjcr2.051
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectreliabilityen
dc.subjectvalidityen
dc.subjectMandibular Function Impairment Questionnaireen
dc.subjecttemporomandibular joint disordersen
dc.titleValidity and reliability of the Portuguese version of Mandibular Function Impairment Questionnaireen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.orcid0000-0001-9214-5378[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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