Application of Theory of Planned Behavior in Predicting of effective Factors on heterosexual relationship in girls Adolescence of Birjand city

Puberty is one of the most critical periods in life that makes individual to feel and behave in a different way. One of the major issues faced young people is the conflict between spiritual values, customary and familiar to the freedom or non-freedom of heterosexual relationships and how to deal with it. Therefore, this study aimed to determine Predicting Factors heterosexual relationship in girls Adolescence of Birjand city.
In this descriptive analytical study, samples were collected from girl students in high schools in different regions of Birjand in 2015. The survey was carried out via simple random sampling of 395 students. Data were collected by the validated and reliable questionnaire based on theory of planned behavior. The gathered data were analyzed using SPSS20 and descriptive statistical tests and , Pearson correlation, logistic regression , t- test and ANOVA tests in significant level less than 0.05...
Among the adolescents participating in this study 43.9% with an average duration was about 15±7 months. Logistic regression analysis showed that attitudes (P≤0.001), intention (P≤0.001), mother's occupation (p=0.03), family size (p=0.01), birth (p=0.03) and the satellite programs watching (p=0.01) strong predictor for the heterosexual relationship individuals were studied.
According to the results of this study showed that the attitude and intention for the relationship with the opposite sex were strong predictors. So the theory of planned behavior can be used as an effective method for planning and intervention to prevent heterosexual relationship.