Strength and difficulties questionnaire (SDQ)

​This is a brief behavioural screening questionnaire about 2 to 17 year olds. It is used for looked after children and young people and is one way in which a response to their particular emotional wellbeing and mental health needs can be prompted and delivered. 

The strength and difficulties questionnaire should be used if you have concerns about a child’s educational attainment. It measures emotional symptoms, conduct problems, hyperactivity, peer problems and pro-social behaviour.

Which questionnaire do I need to complete?

Please use the correct, age appropriate form from the table below:

​To be completed by:Age of child or young person ​Online questionnaire to complete
​Parents or carers​2 to 3 Carer and parental questionnaire 2 to 3
​Parents or carers​4 to 17Carer and parental questionnaire 4 to 17
​School staff​2 to 3 ​Educational questionnaire 2 to 3
​School staff​4 to 17Educational questionnaire 4 to 17
​Young person​11 to 17Young person self-assessment