Effect of Educational Intervention Based on Self-Efficacy on Health-Promoting Behaviors in High-School Girl Students: A Quasi-Experimental Study

Background According to the importance of self-efficacy and the role of health-promoting behaviors in training of adolescents and in order to develop interventions, better understanding of adolescents' health behaviors is required in daily life in order to target activities related to the adolescent health. This study was conducted to investigate the effect of educational intervention on self-efficacy and health-promoting behaviors in Iranian female high-school students. Materials and Methods: This quasi-experimental study was conducted on high-school girl students in Darab city, Iran in 2018. The sampling method was cluster and the way of assigning individuals to the experimental and control groups was simple random method (70 students for experimental group and 70 students for control group). The outcomes of the study were self-efficacy and health-promoting behaviors that were assessed before and two months after intervention in control and training groups. The data were analyzed using SPSS software version 20.0. Results: Mean age of participants was 15.82 +/- 0.48 years. Independent t-test results showed there was no significant difference between the components of health-promoting (P>0.05), and self-efficacy (P=0.5) before the educational intervention between the experimental and control groups, while there was a significant difference between the components of health-promoting and self-efficacy after the educational intervention between the experimental and control groups (P <0.05). Conclusion Among high-school girl students, training intervention used was effective in increasing health-promoting behaviors and self-efficacy.