The purpose of this research was to develop the social and emotional learning intervention program for reducing risky sexual behaviors in upper secondary school students in Thailand. The intervention program was assigned to the purposively chosen students in Bangkok. The students which have risky sexual behaviors were selected and the sample (n = 60) was divided equally into two groups, the experimental group (n = 30) and another was in control group (n = 30). The developed social and emotional learning intervention program consisted of concept, six intervention activities which were Dealing with stress, Teenage Love, Self-belief, Health counselling, Emotional management through Board Games, Camping and evaluation. The intervention program duration was nine weeks. The finding showed the effect of applying the intervention program which can lower risky sexual behaviors in experimental group at the .05 level of significance and also lower than students in control group at .05 the level of significance as well.

Caldarella, P., et al. (2009). Promoting social and emotional learning in second grade students: A study of the strong start curriculum. Early Childhood Educational, 37, 51-56. https://doi.org/10.1007/s10643-009-0321-4

Cartagena, R. G., Veugelers, P. J., Kipp, W., Magigav, K., & Laing, L. M. (2006). Effectiveness of an HIV prevention program for secondary school students in Mongolia. Journal of Adolescent Health, 39, 925e929-925e916. https://doi.org/10.1016/j.jadohealth.2006.07.017

CASEL. (2010). The benefits of school-based social and emotional learning programs: Highlights from a major new report. Chicago, IL: Collaborative for Academic, Social and Emotional Learning. Retrieved November 13 2014

Control, D. o. D. (2011). The percentage of Condom use. Fact Sheet(1).

Doll, B., & Lyon, M. A. (1998). Risk and Resilience: Implications for the delivery of educational and mental health services in schools. School Psychology Review, 27(3), 163-170.

Gallegos, E. C., et al. (2007). Sexual communication and knowledge among Mexican parents and their adolescent children. Journal of the Association of Nursing in AIDS care, 18(2), 28-34. https://doi.org/10.1016/j.jana.2007.01.007

Greenberg, M. T., et al. (2003). Enhancing school-based prevention and youth development through coordinated social, emotional, and academic learning. American Psychologist, 58(6-7), 466-474. https://doi.org/10.1037/0003-066X.58.6-7.466

Isava, D. M. (2006). An investigating the impact of social and emotional learning curriculum on problem symptoms and knowledge gains among adolescents in a residential treatment center. (Doctor of Philosophy), Oregon.

Kenneth W. M., e. a. (2008). Social and Emotional Learning in the Classroom: Evaluation of Strong Kids and Strong Teens on Students’ social-Emotional Knowledge and Symptoms. Journal of Applied School Psychology, 24(2), 209-224. https://doi.org/10.1080/15377900802089981

Kotchick, B. A., Shaffer, A., Forehand, R., & Miller, K. S. (2001). Adolescent Sexual Risk Behavior: A Multisystem Perspective. Clinical Psychology Review, 21(4), 493-519. https://doi.org/10.1016/S0272-7358(99)00070-7

Magnani, R., et al. (2005). The impact of life skills education on adolescent sexual risk behaviors in KwaZula-Natal, South Africa. Journal of Adolescent Health, 36, 289-304. https://doi.org/10.1016/j.jadohealth.2004.02.025

Mbugua, N. (2007). Factors inhibiting educated mothers in Kenya from giving meaningful sex-education to their daughters. Social Science & Medicine, 64, 1079-1089. https://doi.org/10.1016/j.socscimed.2006.10.008

Merrell, K. W., et al. (2008). Social and emotional learning in the classroom: Evaluation of strong kids and strong teens on students social-emotional knowledge and symptoms. Journal of Applied School Psychology, 24(2), 209-224. https://doi.org/10.1080/15377900802089981

Ministry of Public Health Thailand. (2011). Condom Using and STIs among adolescents.

Nopparat, P. (2000). Factors Related ot Sexual Risk Behaviors among High School and Vocational Students. (M.N.S. Medical and Surgical Nursing), Chiangmai University.

Pothisita, C. (2004). The risk of pre-married sexual intercourse in Thai adolescents: the influence of personal factor and family factor. Population and Social Science Research.

Roberts, A. B., Oyun, C., Batnasan, E., & Laing, L. (2005). Exploring the social and cultural context of sexual health for young people in Mongolia: Implications for health promotion. Social Science & Medicine, 60, 1487-1498. https://doi.org/10.1016/j.socscimed.2004.08.012

Samul, S. (2002). A study of sexual value and risk behaviors among students in private universities, Bangkok Metropolis. (Master of Education in Health Education), Chulalongkorn University.

Zamora, A., Romo, L. F., & Au, T. K. (2006). Using biology to teach adolescents about STD transmission and self-protective behaviors. Applied Developmental Psychology, 27, 109-124. https://doi.org/10.1016/j.appdev.2005.12.009