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Test for Major Depression

Doctors rely on several methods to test for major depression. Patients may start the diagnostic process independently, using self-assessment tools, but formal diagnosis requires an interview and evaluation from a qualified health-care provider. Individuals may participate in medical testing to identify sources of depressive symptoms.

  1. Beck Depression Inventory (BDI)

    • The BDI is a depression screening tool consisting of 21 multiple-choice questions pertaining to mood and symptoms. The Center for Psychological Studies regards the BDI as a reliable diagnostic device, but notes that results can be manipulated by test subjects.

    Evaluation

    • Doctors commonly test for major depression through an interview and evaluation. Often, according to the Mayo Clinic, patients may need to complete a questionnaire to help in the diagnosis.

    Laboratory Testing

    • Johns Hopkins Medicine warns that laboratory testing is not reliable grounds for diagnosis of major depression.

    Brain Imaging

    • The American Association of Retired Persons explains that brain imaging is used to identify certain causes of depression. Such tests include electroencephalogram (EEG) and magnetic resonance imaging (MRI).

    Online

    • Tests for major depression are available online for people who suspect they are affected. Results of online testing may encourage individuals to seek professional help, but they are not adequate for diagnosis.

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