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Homogeneity of Beck's Depression Inventory (BDI): Applying Rasch analysis in conceptual exploration
Author(s) -
Bouman T. K.,
Kok A. R.
Publication year - 1987
Publication title -
acta psychiatrica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.849
H-Index - 146
eISSN - 1600-0447
pISSN - 0001-690X
DOI - 10.1111/j.1600-0447.1987.tb02920.x
Subject(s) - rasch model , beck depression inventory , psychology , polytomous rasch model , clinical psychology , psychometrics , mood , internal consistency , item analysis , depression (economics) , item response theory , psychiatry , developmental psychology , anxiety , economics , macroeconomics
— Rasch analysis of the BDI resulted in three unidimensional subscales, viz. a “Mood and Inhibition”, a “Guilt and Failure” and a “Somatic” subscale. All three subscales were of moderate to good internal consistency, and intercorrelated modestly. No significant correlations with sex, age, or education were found. It can be concluded, that the BDI does not, in terms of Rasch measurement model, constitute a unidimensional scale for the measurement of depression.