Niclasen, J., Teasdale, T. W., Andersen, A. N., Skovgaard, A. M., Elberling, H., & Obel, C. (2012). Psychometric Properties of the Danish Strength and Difficulties Questionnaire: The SDQ Assessed for More than 70,000 Raters in Four Different Cohorts. Public Library of Science.

Niclasen, Janni, Thomas William Teasdale, Anne-Marie Nybo Andersen, Anne Mette Skovgaard, Hanne Elberling, και Carsten Obel. Psychometric Properties of the Danish Strength and Difficulties Questionnaire: The SDQ Assessed for More Than 70,000 Raters in Four Different Cohorts. Public Library of Science, 2012.

Niclasen, Janni, et al. Psychometric Properties of the Danish Strength and Difficulties Questionnaire: The SDQ Assessed for More Than 70,000 Raters in Four Different Cohorts. Public Library of Science, 2012.