The Strengths and Difficulties Questionnaire (SDQ – R. Goodman, 1997) ) is a brief child mental health questionnaire for children and adolescents aged 2 to 17. Each questionnaire tests for 25 psychological attributes, some positive and others negative.

These 25 questions are divided between 5 scales:

1. Emotional symptoms
2. Conduct problems
3. Hyperactivity/inattention
4. Peer relationship problems
5. Prosocial (well-meaning) behaviour.

The second part of the questionnaire is an impact supplement, which asks whether the respondent thinks the young person has a problem, and if so, enquires further about chronicity, distress, social impairment, and burden to others. This provides useful additional information for the therapist.

Strength and Difficulties Questionnaire pre-therapy

Strength and Difficulties Questionnaire post-therapy

If you would prefer to fill out the questionnaires by hand, you can print them off in PDF form HERE.