Table 2.

Standardized scores or mothers’ and teachers’ combined rating of children’s emotional und behavioral problems at age 12 for bullied and non-bullied children

Bullied in	Informant	Non-bullied	Bullied
		Mean (SD)	Mean (SD)	(95%CI)	Effect size (d)
Primary school
Age 12 problems
Emotional	Mothers	0.17 (0.87)	0.22 (1.11)	0.39 (0.30, 0.48)	0.39
	Children	0.07 (0.93)	0.10 (1.09)	0.17 (0.08, 0.27)	0.17
Behavioral	Mothers	0.12 (0.90)	0.15 (1.10)	0.23 (0.14, 0.33)	0.27
	Children	0.06 (0.95)	0.09 (1.07)	0.15 (0.05, 0.24)	0.15
Secondary school
Age 12 problems
Emotional	Mothers	0.21 (0.84)	0.37 (1.14)	0.57 (0.47, 0.68)	0.57
	Children	0.11 (0.91)	0.30 (1.16)	0.41 (0.30, 0.53)	0.42
Behavioral	Mothers	0.15 (0.88)	0.26 (1.14)	0.39 (0.29, 0.50)	0.41
	Children	0.10 (0.92)	0.27 (1.14)	0.34 (0.22, 0.45)	0.38

All analyses were controlled for children’s gender

No interaction effect was observed between victimization and children’s gender