Table 3. Comparison of the mean and standard deviation of social cognitive theory’s structures and behaviors, before and after the intervention among students in intervention and control groups .

Variables	Baseline					5-month follow-up
	Control group		Intervention group			Control group		Intervention group		P value
	Mean	SD	Mean	SD	P value	Mean	SD	Mean	SD
Knowledge	5.51	2.32	5.49	2.22	0.916	5.71	2.10	7.55	2.32	0.001
self-efficacy	21.39	7.07	21.06	7.83	0.713	21.49	6.39	27.42	7.19	0.001
Social support	23.21	5.86	22.36	5.42	0.165	22.78	4.81	26.11	5.14	0.001
Perceived social norms	29.07	7.68	29.18	7.83	0.908	31.14	7.29	23.78	9.51	0.001
Observational learning	25.64	7.28	24.53	7.18	0.199	26.67	7.70	20.62	9.21	0.001
Outcome expectancies	18.60	4.36	17.80	4.54	0.134	18.36	3.98	15.51	5.01	0.001
Outcome expectations	14.48	4.81	14.14	4.54	0.540	13.93	4.22	12.97	6.31	0.137
Perceived situational	16.49	3.58	16.59	4.22	0.819	15.84	3.83	20.40	4.67	0.001
Physical bullying	16.93	7.30	15.34	6.55	0.056	17.66	7.41	12.21	6.60	0.001
Verbal bullying	13.93	6.23	14.38	6.28	0.548	14.82	6.38	11.56	6.39	0.001
Social bullying	13.32	5.39	13.38	6.74	0.938	14.01	5.90	10.61	6.04	0.001
Physical victimization	12.77	5.61	12.11	5.91	0.336	13.44	5.25	10.57	5.64	0.001
Verbal victimization	13.02	6.33	14.01	6.48	01.99	15.19	6.80	11.66	6.71	0.001
Social victimization	11.89	5.41	11.76	5.71	0.855	12.42	5.32	10.11	5.11	0.001
Total bullying	44.19	17.43	43.09	17.86	0.605	46.84	18.06	34.39	17.79	0.001
Total victimization	37.68	16.37	37.87	16.30	0.921	41.05	15.96	32.34	16.17	0.001
Social competence	-6.11	20.13	-2.94	22.53	0.215	-7.44	17.39	0.68	27.22	0.001