Danish norms for the strengths and difficulties questionnaire

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  • Jon Arnfred, University of Southern Denmark
  • ,
  • Katrine Svendsen
  • Charlotte Rask
  • Pia Jeppesen, Child and Adolescent Mental Health Centre
  • ,
  • Lotte Fensbo, Educational Psychological Services
  • ,
  • Tine Houmann, Child and Adolescent Mental Health Centre
  • ,
  • Carsten Obel
  • Janni Niclasen, Steno Diabetes Center
  • ,
  • Niels Bilenberg, Odense Mental Health Hospital and University Clinic

INTRODUCTION: The Strengths and Difficulties Questionnaire (SDQ) is a brief well-validated psychometric instrument for assessment of developmental, behavioural and emotional problems in children and adolescents. Versions of the questionnaire covering the 2-17-year age range are answered by parents and by pedagogues or teachers. Also, a self-report version can be used from the age of 11 years. The SDQ is well-accepted by informants and is increasingly preferred both internationally and in Denmark for research and evaluation purposes. The questionnaire is also well-suited for clinical use, especially in the primary sector. However, no comprehensive set of Danish norms has been available before this study. METHODS: Data from an extensive survey in a Danish municipality was used to generate national norms for SDQ scores. These norms were compared with British and Nordic population data. RESULTS: Across informants, threshold values show some variation with age and often differ between sexes. Therefore, norms are provided both with and without gender stratification. Similarities as well as differences were found between the Danish norms and materials from other countries. The differences may, to some extent, be attributable to methodological issues. CONCLUSION: We expect that the availability of Danish SDQ norms will further stimulate the use of the instrument.

Original languageEnglish
Article numberA5546
JournalDanish Medical Journal
Volume66
Issue6
Number of pages7
ISSN1603-9629
Publication statusPublished - 1 Jun 2019

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