In 2001, Robert Kroenke, Kurt Spitzer, and Janet Williams published the Patient Health Questionnaire-9 (PHQ-9) as a brief depression screener for primary care. The nine-item instrument asks about symptom frequency over the past two weeks, including the ninth item on thoughts of self-harm. Scores of 10 or higher often prompt follow-up evaluation, though only clinical assessment can confirm a depressive episode.

The Quiz Hub built this depression test as an expanded, plain-language screener inspired by PHQ-9 themes. It uses nine core items plus eleven supplemental functioning questions and four result bands rather than the full published instrument. That trade-off favors readability for casual users while naming the Kroenke et al. (2001) source honestly. The National Institute of Mental Health notes that depression is treatable and that early screening in primary care can connect people to therapy and medication when appropriate.

The Quiz Hub testWhat it adds
Mental health testGeneral wellbeing across mood, anxiety, sleep, and functioning, not depression-only screening
Am I bipolar quizMDQ-inspired depressive and manic/hypomanic poles over 12 months, not two-week PHQ recall
ADHD testInattention and hyperactivity domains, not mood symptom frequency
Emotional maturity quizRegulation and responsibility habits, not clinical depression screening
This depression testPHQ-inspired core items plus supplemental functioning scores with crisis resources on elevated bands

Sample item: rating Often on lost interest in hobbies raises your mood and anhedonia domain score. Rating Nearly every day on fatigue raises physical energy. Grief, seasonal changes, and medical conditions can mimic depression symptoms, so clinicians rule out other causes during evaluation. Browse more screeners on our mental health and clinical hub or read how we review quizzes in our editorial policy.