Strengths and Difficulties Questionnaire.
SDQ
- What it measures
- Child/adolescent psychosocial adjustment; 5 subscales: Emotional Symptoms, Conduct Problems, Hyperactivity/Inattention, Peer Relationship Problems, Prosocial Behavior; Total Difficulties score; impact supplement
- Length and format
- 25 (core) + impact supplement. 3-point (not true / somewhat true / certainly true) (informant/observer report)
- Language versions
- 80+ languages incl. ES, ZH, RU, PT, FR, DE, AR, NL and most European and many Asian/African languages
- Normative data
- Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.
- Licence
- copyrighted - author permission
This instrument is not self-serve. Obtaining it means going to the publisher or the author. The source link below is the starting point.
Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.
- Reference
- Goodman, R. (1997). The Strengths and Difficulties Questionnaire: A Research Note. Journal of Child Psychology and Psychiatry, 38(5), 581-586. (https://www.sdqinfo.org)
Choosing between this and the alternatives
We do not deliver this instrument. If you are selecting a measure for a research programme, a national survey or an assessment product, and the question is which instrument, in which language, against which norms and under which licence, that is the work we do.
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