eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-09-25 13 3 1773 1778 10.13005/bbra/2329 15910 article Ali Mostafaei 1 Davood Ghaderi 2 Mohiadin Mohammadkhani 1 Department of Psychology, PayameNoor University, PO BOX 19395-3697, Tehran, I. R. IRAN. Department of Psychology, Islamic Azad University, Sarab Branch, Sarab, Iran. In today's world mental health is an important phenomenon and can affect physical health and normal daily functioning. Identify the factors influencing it helps to control the negative factors affecting it. This study was conducted aimed to predict mental health based on attachment styles in high schoolgirl students. This study is descriptive and correlational (predictive). The population consisted of all High school girl students that were enrolled in the academic year 2014-2015 in the city of Mahabad. 250 students were randomly selected. To collect the data, attachment questionnaire Collins and Reid and mental health questionnaire (SCL- 90- R) was used. Data analyzed with software SPSS-21 and using stepwise regression. The results showed that all three styles: secure attachment, ambivalent and avoidance are able to predict mental health. These three components simultaneously can explain 53 percent of variance of mental health. In explaining of lack of mental health, the role of secure attachment style is more than other components (-0.498). The role of component ambivalent attachment style (0.352) and the style of avoidant (0.158), respectively second and third. https://www.biotech-asia.org/vol13no3/predicting-the-mental-health-based-on-attachment-styles-in-high-school-students/ secure attachment; ambivalent; avoidant; mental health