IRCT2016121431419N1 IRCT 2016-12-31 Mashhad University of Medical Sciences The effect of education on the prevention of risky sexual behaviors, sexual knowledge and attitude of students Comparing the effect of preventing risky sexual behaviors in both the educational package and the mobile app, sexual knowledge and attitude of girl students of Mashhad University of Medical Sciences 2016-05-30 anticipated 300 Complete https://irct.ir/trial/24719 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention. N/A Sexual knowledge and attitude. Intervention 1: In training package group, the members received a packet containing a manual and a CD with multimedia educational content. Tips and the curriculum contents and pictures according to each topic separately were designed for (14 sessions). The content of the training program includes: 1. Definition of high risk behavior 2. STDs and HIV, Definition, symptoms and ways to prevent 3. The role of the unprotected sexual affairs, unusual sex affairs and multiple sexual partners on the disease and associated side effects. 4. Protection during sex. Intervention 2: The training through the mobile group received training through a mobile application designed by the researcher. Tips and the curriculum contents and pictures according to each topic separately were designed for (14 sessions). The content of the training program includes: 1. Definition of high risk behavior 2. STDs and HIV, Definition, symptoms and ways to prevent 3. The role of the unprotected sexual affairs, unusual sex affairs and multiple sexual partners on the disease and associated side effects. 4. Protection during sex. Intervention 3: The control group did not receive any intervention.