Abstract

BAPTISTA, Makilim Nunes  and  CARVALHO, Lucas de Francisco. Diagnostic accuracy of a Brazilian depression self-report measure (EBADEP): Original and short versions. Aval. psicol. [online]. 2018, vol.17, n.4, pp. 484-492. ISSN 1677-0471.  http://dx.doi.org/10.15689/ap.2018.1704.8.08.

The present study aimed to investigate the diagnostic accuracy of a scale for the assessment of depressive symptoms, the EBADEP-A, and its short version. Also, we propose the application of the concept of equivalence to compare the discriminative capacity between the two scales, i.e., to determine whether a new procedure (i.e., EBADEP-A short version) is not worse than the procedure in use (i.e., the EBADEP-A). Participants were 80 individuals, 40 with a diagnostic of major depressive disorder based on SCID-I, and 40 healthy controls. Age mean was about 41, and most participants were female (85%). We calculated sensitivity, specificity, positive and negative likelihood ratio, positive and negative predictive power, and negative predictive power (PP−), based on the ROC curve for the EBADEP-A full and short versions. Both versions of EBADEP-A proved useful for the diagnostic of major depression. We concluded that the short version of EBADEP-A is closely equivalent to its extended version. Based on the results we found, we conclude that using diagnostic accuracy combined to the concept of equivalence can not only assist professionals with a focus on psychometric parameters, but also have an impact on the application of the tools in clinical settings.

Keywords : psychometric properties; diagnostic; cut-off.

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