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Katharina Liegmann; Lisa Fischer; Kevin Dadaczynski; Reiner Hanewinkel; Frauke Nees; Matthis Morgenstern – International Journal of Behavioral Development, 2025
This study examined the new self-report version of the Strengths and Difficulties Questionnaire (SDQ-S), SDQ-Kids, in primary school children regarding internal consistency, teacher-child agreement, and validity. Data from 2,655 children in Grades 1 to 3 and their teachers were analyzed. Children completed SDQ-Kids, previously piloted (n = 896),…
Descriptors: Questionnaires, Behavior Problems, Screening Tests, Child Behavior