The Effect of Health Education Using Educational Video Media on Adolescents' Knowledge and Attitudes About Mental Health at SMP Negeri 18 Pekanbaru

Adolescents are an age group vulnerable to mental health disorders. Lack of knowledge and appropriate attitudes are risk factors that can worsen mental health. Health education through educational videos is considered influential in increasing adolescents' understanding of the importance of maintaining mental health. This study aims to determine the effect of health education using educational videos on the knowledge and attitudes of adolescents at SMP Negeri 18 Pekanbaru. This study was quantitative with a pre-experimental one-group pretest-posttest design. The study was conducted on May 23, 2025, with a sample of 82 students in grades VII and VIII, selected using a proportional random sampling technique. The instrument used was a knowledge and attitude questionnaire. The results of the univariate analysis showed that the average knowledge increased from 5.01 to 7.51, and the average attitude increased from 21.91 to 25.37 after the intervention. The Paired T-Test showed a p-value = 0.000 (