The Strengths and Difficulties Questionnaire (SDQ) self-report form is a brief 25-item measure that assesses the psychological adjustment of youth. Although widely utilized as a screening tool, a lack of consistent psychometric evidence undermines the SDQ's utility as a sound diagnostic tool for all youth. This study focused on examining the…

This study investigated the cross-informant agreement among student self-report, teacher report, and parent report on the Strengths and Difficulties Questionnaire translated into Finnish (SDQ-Fin) and estimated mean convergent and divergent correlations with a sample of fifth-grade Finnish students (N = 588) and the cross-informant agreement among…