摘要：This survey aims to study the relationship between various aspects of religiousness and students' happiness. To do this, 240 students of Isfahan Girls' High Schools were selected and studied via multistage cluster sampling. Collected data were analyzed using multiple regression. According to findings, there is a significant relationship between various aspects of religiousness and students' happiness. As a closing remark, it can be said that religiousness and its different aspects have a considerable impact on mental health especially girl students' happiness.
