TABLE 4.

Reference values of SDQ parent‐ and self‐report ¹⁹ , ²⁰

	SDQ Parent‐report			SDQ Self‐report
Subscale	Normal	Borderline	Abnormal	Normal	Borderline	Abnormal
Total Difficulties Score	0‐13	14‐16	17‐40	0‐15	16‐19	20‐40
Emotional Problems	0‐3	4	5‐10	0‐5	6	7‐10
Hyperactivity	0‐5	6	7‐10	0‐5	6	7‐10
Conduct Problems	0‐2	3	4‐10	0‐3	4	5‐10
Peer Problems	0‐2	3	4‐10	0‐3	4‐5	6‐10
Prosocial Behavior	6‐10	5	0‐4	6‐10	5	0‐4

Abbreviation: SDQ, Strengths and Difficulties Questionnaire.