Indonesia Conference Directory

Background: Premarital sex behavior in adolescents has several negative impacts such as psychological, physiological, social and physical impact. This phenomenon increasing every year. One of premarital sex behavior prevention in adolescents is through giving education, especially with smartphone aplication. This study aimed to determine the effect of health education with the "aplikasi gapin" to the adolescents knowledge and attitude in premarital sex. Research Method: This research used quasi experiment with one group only with pretest and posttest design. Sampling technique used quota sampling, which involved 53 students. Data were collected using a questionnaire of knowledge and attitude. Data were analysed using Wilcoxon test and Independent sampel T test. Results: The study results showed that there was a significant difference of knowledge and attitude between before and after given health education with p value = 0,000 (p <0,05). Conclusion: “aplikasi gapin” was effective to improve knowledge and attitude of premarital sex behavior in adolescents.