Strengths and Difficulties Questionnaire (SDQ)

The SDQ is probably the most used measure in work with children and adolescents. There is extensive information about it at

Details #

The basic design is 25 items addressing:
1) emotional problems
2) conduct problems
3) hyperactivity/inattention
4) peer relationship problems
and a separate set of questions about:
5) prosocial behaviour
Each of the five areas has five items and the total across the first four makes up a total difficulties score.

It’s interesting in having parent/guardian and teacher report forms for 4 to 16 year olds and a separate version for parents/guardians and nursery school staff for 3 and 4 year olds. In addition there is a self-completion version for 11-16 year olds. There are also “impact supplement” forms for informants exploring whether and how the informant perceives the young person as having problems and a separate “follow up” form to be completed at the end of any intervention asking about change.

Chapters #

Chapters 2 and 4.

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