Assessing and Improving the Knowledge of Sexually Transmitted Infections among High School Adolescents

Table 4

Scores of each individual question before and after STI presentation.

Question	Pretest score		Posttest score		Mean diff	SD of mean diff	value
	Mean	SD	Mean	SD
1	0	0	0.23	0.42	0.23	0.42	<0.0001
2	0	0	0.16	0.34	0.14	0.34	0.0012
3	0.44	0.5	0.58	0.5	0.14	0.6	0.06
4	0.08	0.27	0.62	0.49	0.54	0.5	<0.0001
5	0.35	0.48	0.66	0.48	0.28	0.59	<0.0001
6	0.01	0.12	0.19	0.39	0.18	0.42	0.0005
7	0.09	0.29	0.38	0.49	0.28	0.51	<0.0001
8	0.05	0.23	0.14	0.34	0.08	0.4	0.08