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What is the SDQ?

The Strengths and Difficulties Questionnaire (SDQ) is a brief behavioural screening questionnaire abo

in several versions to "eet the needs of researchers# clinicians and educationalists. $ach version includthe follo%ing co"&onents'

A) 25 items on psychological attributes.

ll versions of the SDQ as about *+ attributes# so"e &ositive and others negative. These *+ ite"s ar

1) e"otional sy"&to"s (+ ite"s)

,1) to ) added togeth

generate a total

difficulties score(based on * ite"s)

*) conduct &roble"s (+ ite"s)

3) hy&eractivity/inattention (+ ite"s)

) &eer relationshi& &roble"s (+ ite"s)

+) &rosocial behaviour (+ ite"s)

The sa"e *+ ite"s are included in questionnaires for co"&letion by the &arents or teachers of 100).

slightly "odified infor"ant-rated version for the &arents or nursery teachers of 3 (and ) yea

identical# the ite" on reflectiveness is softened# and * ite"s on antisocial behaviour are re&lace

o&&ositionality.

Questionnaires for self-co"&letion by adolescents as about the sa"e *+ traits# though the %or

(2ood"an et al# 100). This self-re&ort version is suitable for young &eo&le aged around 11-16understanding and literacy.

n lo%-ris or general &o&ulation sa"&les# it "ay be better to use an alternative three-subscale division4internalising &roble"s4 (e"otional5&eer sy"&to"s# 1 ite"s)# 4e!ternalising &roble"s4 (conduct5hy&e

ite"s) and the &rosocial scale (+ ite"s) (2ood"an et al# *1).

B) An impact supplement

Several t%o-sided versions of the SDQ are available %ith the *+ ite"s on strengths and difficulties on

i"&act su&&le"ent on the bac. These e!tended versions of the SDQ as %hether the res&ondent thin

http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=Goodman1997&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=GoodmanEtAl1998&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=GoodmanEtAl2010&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=GoodmanEtAl1998&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=GoodmanEtAl2010&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=Goodman1997&n=1

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&roble"# and if so# enquire further about chronicity# distress# social i"&air"ent# and burden to others.

additional infor"ation for clinicians and researchers %ith an interest in &sychiatric caseness and the de

(2ood"an# 1000).

C) Follow-up questions

The follo%-u& versions of the SDQ include not only the *+ basic ite"s and the i"&act question# but al

questions for use after an intervention. as the intervention reduced &roble"s7 as the intervention h

"aing the &roble"s "ore bearable7 To increase the chance of detecting change# the follo%-u& versiolast "onth4# as o&&osed to 4the last si! "onths or this school year4# %hich is the reference &eriod for the

u& versions also o"it the question about the chronicity of &roble"s.

http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=Goodman1999&n=1http://www.sdqinfo.com/py/sdqinfo/GetAbstract.py?id=Goodman1999&n=1