Study design and sampling
In this cluster randomized trial study, was performed in Tehran. 168 eighth grade female students (84 students in the intervention group and 84 in the control group) based on their interest and informed consent and their Parents written informed consent participated in the study in 2021.Initially, 14 district (a downtown area) in Tehran was selected out of the 22 districts by cluster randomly. Then four schools among the 20 girls' schools in this area, were chosen and allocated two groups of intervention and control randomly (Simple (. (2 schools for intervention groups and 2 schools for control groups) (Fig. CONSORT Flow Diagram of Study