Identifying Religiosity levels and compares it among different groups of Tehran citizens

Religious is one of the social realities, and rituals of religious monitor human social needs. Rituals of religious indicate solidarity and reliance on the group and they show the scene of belong to the society. Religion is the common ethical language in every society. This article tries to response to these questions: how is religiosity of citizens of Tehran? What makes difference between religiosity in different groups on the basis of age, sex, place of residence, birth place, marriage, education? What is the relationship between religiosity and Social - economic base?In this research we utilize descriptive – comparison kind of research and the survey method is used for this paper. In this paper all citizens who live in Tehran during late October 2009 belong to our Universe, the sample size is calculated by Cochrane formula and it was about 391 people, and cluster and stratified sampling are used in this article. We also used content validity and Cronbach's Alpha coefficient to examine validity and reliability of the research. Religiosity in this paper is indicated by three indicators such as believes, moral values, religious actions; so we use likert scale with ordinal measurement in this article.The results of this research indicate that there is no difference of religiosity between men and women and between citizens of Tehran and other cities in Iran. However there is significant difference between different ages, single or married people, level of educations and different places of residence although Social and economic base of family have significant relation with religiosity of people and there is a reverse and negative relations between them.