The Even Briefer Assessment Scale for Depression (EBAS DEP) was developed by Allen et al as a rapid screen for depression, primarily in geriatric patients. This is based on a subset of the 21 item Brief Assessment Scale for Depression (BAS DEP).


Design criteria:

(1) must be short (fewer than 10 items)

(2) good internal consistency (Cronbach alpha > 0.8)

(3) some internal logic

(4) simple scoring (1 if present, 0 if absent)


The instrument consists of 8 questions, with responses yes or no.


total score =

= SUM(points for all 8 items)



• minimum score: 0

• maximum score: 8

• If the CES-D scale is used for comparison, the best cutoff score is >= 4. This gives a diagnostic efficiency of 79%.

• If the criteria of Feighner et al are used, the best cutoff score is >= 5.


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