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Publication
Validation of a measuring instrument for the perception of oral health in women
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Advisor(s)
Abstract(s)
The aim of this study was to estimate the reliability, validity
and factorial invariance of the Portuguese version of the Geriatric/
General Oral Health Assessment Index (GOHAI) as applied to
Brazilian women. A total 701 women over 18 years of age participated
in this study. Telephone interviews were conducted. We evaluated
the construct-related validity through factorial, convergent and
discriminant validity. We carried out a confirmatory factor analysis
using the χ2/df, CFI, GFI and RMSEA indexes. The invariance of the
model in a second independent sample was estimated by multi-group
analysis and internal consistency using Cronbach’s alpha coefficient.
Items 5 and 9 presented factor weights below the adequate value
and were removed. The three-dimensional and unifactorial model
presented an adequate fit. We observed strong factorial invariance
of the models in two independent samples (three-factor: ρλ = 0.62;
pCov = 0.89, one-factor: ρλ = 0.81; pCov = 0.68) and weak factorial
invariance between users and nonusers of dental prosthetics (threefactor:
ρλ = 0.55; pCov = 0.01, one-factor: ρλ = 0.51; pCov = 0.02).
The convergent validity was suboptimal. Internal consistency was
adequate. The GOHAI applied to the study sample showed adequate
reliability, factorial validity and stability in independent samples and
between users and nonusers of dental prosthetics in both the threedimensional
and the unifactorial structures.
Description
Keywords
Reproducibility of results Validity of tests Scales Oral health
Citation
Brazilian Oral Research, 28, 1-7
Publisher
Sociedade Brasileira de Pesquisa Odontológica - SBPqO