The Kessler questionnaire is a measurement of psychological distress, and is not a replacement for a diagnosis from a doctor. The answers to each question are given a value from 1 to 5 depending on severity. Scores range from 10 to 50, with higher scores indicating more distress.

If you would like to talk to someone, try one of the following free helplines as a first step, or contact your doctor.

• 1737 phone or text 24/7 to reach a trained counsellor
• Depression Helpline (0800 111 757)
• Lifeline (0800 543 354)
• Samaritans (0800 726 666)
• Youthline (0800 376 633)

For mental health emergencies, contact your local crisis team

See more information about depression.