Escala Baptista de Depressão (Versão Adulto) - EBADEP-A: evidências de validade de construto e de critério

Abstract

ResumoO presente estudo teve como objetivo analisar as qualidades psicométricas da Escala Baptista de Depressão (Versão Adulto) -EBADEP-A, com base na Teoria da Resposta ao Item -TRI e na Teoria Clássica dos Testes -TCT. Inicialmente, sobre os parâmetros de ajuste ao modelo, tanto no que concerne aos itens quanto às pessoas, os valores foram considerados de boa adequação, com percentual de desajuste considerado baixo. Em relação à precisão, tanto o alfa de Cronbach quanto o índice gerado pelo modelo de Rasch foram considerados excelentes. O estudo do funcionamento diferencial apresentou 17 itens com viés de resposta, sendo 11 favorecendo o grupo feminino e 6 o masculino. Quanto às análises com base na TCT, foi realizada ANOVA para análise dos grupos critério, sendo que a EBADEP-A foi capaz de discriminar os grupos de não-depressivos, universitários, psiquiátricos e depressivos. Estes resultados foram considerados como evidências de validade de construto e critério, respectivamente, complementando as diversas evidências já encontradas para a escala. Palavras-chave: Funcionamento diferencial do item, Teoria da resposta ao item, Teoria clássica dos testes, EBADEP-A, Validade. Escala Baptista de Depressão (Versão Adulto) -EBADEP-A: construct and criterion validity evidences AbstractThis study aimed to analyze the psychometric qualities of the Escala Baptista de Depressão (Versão Adulto) -EBADEP-A based on Item Response Theory -IRT and Classical Test Theory -TCT. Initially, adjustment parameters on the model, both regarding to items and to people, were considered good fit values, with a low percentage of mismatches. In relation to the reliability, both Cronbach's alpha and the Rasch index were considered great. The study of differential functioning presented 17 items with response bias, 11 favoring the female group and 6 the male one. As for the analysis based on TCT, it was performed an ANOVA to analyze the criterion groups, and the EBADEP-A was able to discriminate the non-depressed, college students, psychiatric and depressive groups. These results were considered as evidence of construct validity and criterion, respectively, complementing the variety of evidence ever found for the scale.

Posttraumatic growth and predictor variables in Brazilian women with breast cancer

“…The lower the score, the lower the symptomatology is considered to be. It presented a Cronbach Alpha of 0,95 in a validation study (23) . In the present study, the total score of the scale presented α= 0.93.…”

Constructing a Common Scale Between Tests of Depression: The use of Item Response Theory for Transferring of Norms from the BDI to EBADEP-A

“…Besides that, the EBADEP-A is more appropriate to evaluate depression symptoms from the mild to moderate range, almost reaching the severe level of depression symptoms; and, BDI is more adjusted to measure more severe symptoms of depression (Baptista, 2012;see Kendall, Hollon, Beck, Hammen, & Ingram (1987) for a BDI use discussion). A series of studies with the EBADEP-A demonstrated validity evidence and adequate reliability (Baptista & Carneiro, 2011;Baptista & Gomes, 2011;Baptista, Carneiro & Sisto, 2010). The instrument has been approved for clinical and research use by a committee of experts in psychometrics in Brazil (Conselho Federal de Psicologia [CFP], 2014).…”

“…Regarding to the interpretation, the lower the score, the lower the depression symptomatology. Several studies were conducted based on CTT and IRT, showing suitable validity evidences and favorable reliability for EBADEP-A, specifically, the items set showed evidences for unidimensionality, with internal consistency reliability (alpha) of 0.94, and correlation of r = 0.75 with the BDI total score (Baptista, 2012;Baptista, Souza, & Alves, 2008;Baptista, Souza, Gomes, Alves, & Carneiro, 2012;Baptista & Gomes, 2011: Baptista et al, 2010Carvalho, Primi, & Nunes Baptista, 2015). We also administered the BDI, an instrument to measure the intensity of depression.…”

Exploratory Study of the Diagnostic Abilities of the Baptista Depression Scale Adult Version (EBADEP-A)

“…The following proportion of items was found for the scale: 33% cognitive symptoms; 20% mood symptoms; 18% social; 18% vegetative; 4.5% motor symptoms; 4.5% irritability; and 2% anxiety. Baptista and Gomes (2011) conducted an analysis of the instrument's psychometric qualities based both on the Classical Test Theory (CTT) and the Item Response Theory (IRT) for 1,467 people aged 26.44 years old on average (SD = 9.55), mostly women (74%), in the states of São Paulo and Minas Gerais, Brazil. The IRT analysis of the model's adjustment parameters showed values considered to have goodness of fit with a low percentage of adjustment.…”