Table 2. Comparing the knowledge and self-efficacy scores of parents before and after training using multimedia between the experimental and control groups .

Component	Experimental		Control		P*
	Before intervention Mean (SD)	After intervention Mean (SD)	Before intervention Mean (SD)	After intervention Mean (SD)
Knowledge	5.12 (1.94)	8.72 (0.97)	5.12 (1.96)	5.96 (1.59)	P<0.001
Self-efficacy	35.72 (11.1)	52.68 (3.55)	39.56 (10.57)	37.40 (6.82)	P<0.001

^*In this table P is the difference between before and after in the experimental and control groups.