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Revista de la Universidad Industrial de Santander. Salud
versión impresa ISSN 0121-0807
Resumen
DIAZ-CARDENAS, Shyrley; TIRADO-AMADOR, Lesbia y SIMANCAS-PALLARES, Miguel. Construct validity and reliability of the family APGAR in adult dental patients from Cartagena, Colombia. Rev. Univ. Ind. Santander. Salud [online]. 2017, vol.49, n.4, pp.541-548. ISSN 0121-0807. https://doi.org/10.18273/revsal.v49n4-2017003.
Objective:
To determine construct validity and reliability of the family APGAR scale in dental adult patients from Cartagena, Colombia.
Methods:
Scale validation study without a reference criterion in 227 patients between 22 and 94 years old whom consulted a college-based dental clinic. Family APGAR data was obtained from the family health charts. Internal consistency was calculated with the Kuder-Richardson formula and construct validity, by means of exploratory (EFA) and confirmatory factor analysis (CFA). Fit indexes were obtained from CFA: χ2; p-value for χ2; degrees of freedom (df); root mean square error of approximation (RMSEA); comparative fit index (CFI) and Tucker-Lewis index (TLI). Data analysis was performed using Stata v.13.2 for Windows (StataCorp, TX, US) and Mplus v.7.31 for Windows (Muthén & Muthén, LA, US).
Results:
Family APGAR overall score was 17,07±3,15 and prevalence of family dysfunction was 44,4% (95% CI: 38 - 51%). Internal consistency was 0,90. EFA showed a single factor that accounted for 64,1% of the total variance. CFA showed as fit indexes: χ2=702,960; df=10, χ2 p-value=0.001; RMSEA=0.155 (90% CI: 0.107-0.209); CFI=0.961; TLI=0.922.
Conclusions:
Family APGAR in Cartagena dental adult patients seems to be a highly valuable screening instrument with excellent internal consistency but questionable construct validity. Additional studies must be conducted in order to obtain scales with adequate psychometric properties for construct measurement.
Palabras clave : Family; psychometrics; epidemiology; Apgar Score.