Major Depression Inventory (MDI) is an online depression test developed by the WHO for self-assessment of symptoms and their severity.
Unlike other self-report tools, such as the Beck Depression Inventory (BDI), the MDI is based on the diagnostic criteria of ICD-10 and DSM-IV and can be used to assess whether symptoms correspond to the criteria for clinical depression. The test helps determine the level of depression and track changes in condition over time. It is important to note that the test result is not a medical diagnosis and does not replace consultation with a healthcare professional.