IRCT20180813040780N1 IRCT 2018-10-13 Mashhad University of Medical Sciences Effectiveness of an interventional program on aggressive behaviors in adolescents aged 13 to 15 The effect of training based on planned pattern of behavior on aggression in adolescents aged 13-15 2018-09-23 anticipated 90 Complete https://irct.ir/trial/33410 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Other, Purpose: Education/Guidance, Other design features: In this study, a model of planned behavior will be used to study the components of a comprehensive school aggression prevention approach, Randomization description: Two boys 'state schools will be available in terms of roughly similar terms (geographic location, student numbers and teachers' status). After explaining the goal to the parents and obtaining the written consent of the researcher from their students and their parents, two schools will be randomly assigned to two intervention and control groups through throwing coins (control group milk and intervention group line). N/A Aggression. Intervention 1: Intervention group: Educational sessions based on the results obtained from the completion of the questionnaire of the structured models of planned behavior in the intervention group, educational program based on the pattern of planned behavior in the intervention group, group sessions, lectures and group discussions, and in groups of 10, educational booklet. Intervention 2: Control group: This group does not receive any intervention. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is After the end of the study, the decision will be made according to the results of the study.