Table 1. Organization of Educational Sessions in the intervention Group .

Sessions	Objectives	A summary of topics and activities
First	To facilitate participatory dialogue(Increasing advantages and decreasing perceived disadvantages of reducing WPS)	Group discussion regarding various advantages of reducing WPS and emphasizing on advantages more than disadvantages To show photo clips about advantages of reducing WPS.
Second	To facilitate behavioral confidence(increasing self-efficacy and perceived control behavior of reducing WPS)	Role playing about how to persist on presenting WP from peers Video with a media celebrity talked about harmful effects of WPS
Third	To facilitate emotional transformation (influences of students' positive and directing emotions to reduce WPS)	Showing video clips harmful effects of WPS Small group discussion about harmful effects of WPS
Fourth	To facilitate practice for change(increasing students’ self-monitoring and setting goal of reducing WPS)	Keeping diary notebook for monitoring reducing WPS better Presenting booklets that to direct behavior for reducing WPS goal. To use a role model done self-monitoring in his reducing WPS
Fifth	To facilitate change in the social environment (Getting help from friends and family)	Social support from friends and family for reducing WPS. Presenting booklets that to direct behavior for reducing WPS goal. provide emotional and informational support to help reducing WPS in students