From the analyst's view to the patient's thoughts
The original paper was An inventory for measuring depression by Beck, Ward, Mendelson, Mock and Erbaugh (1961).8 Its items cover negative thinking, low self-esteem and suicidal thoughts, as well as bodily symptoms such as poor sleep, appetite changes and fatigue.4
What changed between 1961, 1978 and 1996
Switch between editions to see how the answer choices and the time window changed. Only the two published example statements are quoted; the rest are shown as placeholders.
Six of nine: why the BDI-II came in 1996
The BDI-IA was easier to use, but it covered only six of the nine DSM-III symptom criteria for major depressive disorder. That gap, plus the arrival of the DSM-IV, led to the 1996 BDI-II.4
The BDI-II doesn't depend on any one theory of depression, has been translated into several languages, and is designed for people aged 13 and over.2,1
Two ways to measure depression, a year apart
The Hamilton scale of 1960 is rated by a clinician. Beck's inventory, a year later, is filled in by the patient.
Hamilton column as documented on our HAM-D 1960 page.
Card, computer and child versions
References
- [1]Wikipedia contributors. Beck Depression Inventory (accessed 30 Sept 2026).en.wikipedia.org
- [2]Beck Depression Inventory. Occupational Medicine, 66(2), 174 (2016). Oxford Academic.academic.oup.com
- [3]Beck Depression Inventory (BDI). American Psychological Association, caregiver assessment tools.apa.org
- [4]Beck Depression Inventory. In The SAGE Encyclopedia of Educational Research, Measurement, and Evaluation (2018). SAGE Research Methods.methods.sagepub.com
- [5]Towards knowledge-based mining of mental disorder patterns from textual data (2022). arXiv:2207.06254.arxiv.org/pdf/2207.06254
- [6]What is the Beck Depression Inventory? Mental Health Matters (2021).mental-health-matters.org
- [7]Phase 1 study of MMV533: protocol NCT04323306, §7.6 Beck Depression Inventory. ClinicalTrials.gov (PDF).cdn.clinicaltrials.gov
- [8]Beck Depression Inventory (BDI-I): history and citation of Beck, A. T., Ward, C. H., Mendelson, M., Mock, J., & Erbaugh, J. (1961). Psycho-tests.com.psycho-tests.com
Related historical tests
Published a year earlier and rated by a clinician after an interview. Together with the BDI it set the two main approaches to measuring depression: observer rating and self-report.
Another questionnaire people fill in about themselves. It measures normal-range personality on 16 scales instead of the severity of one condition.
A projective test read through a psychodynamic lens. The BDI's direct questions about thoughts and symptoms were part of the shift away from that approach.
A test designed to need no reading at all. The BDI, by contrast, needs roughly a fifth- to sixth-grade reading level to be understood properly.
The adult IQ test compares each person with others their own age. The BDI instead compares a raw total with fixed severity bands.
A scale filled in from an informant's reports of everyday functioning. It is the opposite of the BDI, where the only source is the person themselves.