Beck depression inventory pdf3/28/2023 ![]() ![]() The internal consistency for the BDI-IA was good, with a Cronbach's alpha coefficient of around 0.85, meaning that the items on the inventory are highly correlated with each other. To improve ease of use, the " a and b statements" described above were removed, and respondents were instructed to endorse how they had been feeling during the preceding two weeks. The BDI-IA was a revision of the original instrument developed by Beck during the 1970s, and copyrighted in 1978. For instance, there are two responses under the Mood heading that score a 2: (2a) "I am blue or sad all the time and I can't snap out of it" and (2b) "I am so sad or unhappy that it is very painful". Some items on the original BDI had more than one statement marked with the same score. Lower total scores indicate more severe depressive symptoms. The standard cut-off scores were as follows: When the test is scored, a value of 0 to 3 is assigned for each answer and then the total score is compared to a key to determine the depression's severity.
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