Structural validity and reliability of the Danish self-report Strengths and Difficulties Questionnaire among male and female students in vocational education and training

Abstract

Objective: The Strengths and Difficulties Questionnaire (SDQ) is a widely used mental health screening instrument among children and adolescents and increasingly used by welfare professionals in Denmark. However, the psychometric properties of the SDQ-self report (SDQ-S) among vocational education and training (VET) students are unknown. We assess the structural validity, internal consistency reliability, and test-retest reliability of the Danish SDQ-S among these students.