University of Tehran Journal of Applied Psychological Research 2251-8126 9 3 2018 09 23 Explaining Extra Role Behaviors (Organizational Citizenship Behavior) Based on Self-Development Explaining Extra Role Behaviors (Organizational Citizenship Behavior) Based on Self-Development 91 116 69569 10.22059/japr.2018.69569 FA Fatemeh Narenjithani Faculty of Psychology and Educational Sciences, University of Tehran,Tehran.Iran Zeinabalsadat Mostafavi Faculty of Psychology and Educational Sciences, University of Tehran,Tehran.Iran ُara ریالahmati PhD candidate of university of Shahid Beheshti, Tehran.Iran Journal Article 2019 01 22 The purpose of this study is to explain the extra role behavior (organizational citizenship behavior) based on self-development components. This research is applied in terms of purpose, and also in terms of data collection method it is considered as a quantitative-descriptive research. The statistical population of this research consisted of experts at Telecommunication Organization of Tehran province 120 people that by Using Cochran formula and random sampling method, 90 of them were selected. The validity of the questionnaires was calculated using content validity and reliability of the questionnaires using Cronbach's alpha. Descriptive and inferential statistics were used to analyze and interpret the research objectives after collecting and tabling data. The results of the analysis showed that 1) self-development in general can explain the extra role behaviors in the organization; and 2) among the components of self-development, work- oriented and Success-oriented, have played the most role in explaining the extra role behaviors in the organization. The purpose of this study is to explain the extra role behavior (organizational citizenship behavior) based on self-development components. This research is applied in terms of purpose, and also in terms of data collection method it is considered as a quantitative-descriptive research. The statistical population of this research consisted of experts at Telecommunication Organization of Tehran province 120 people that by Using Cochran formula and random sampling method, 90 of them were selected. The validity of the questionnaires was calculated using content validity and reliability of the questionnaires using Cronbach's alpha. Descriptive and inferential statistics were used to analyze and interpret the research objectives after collecting and tabling data. The results of the analysis showed that 1) self-development in general can explain the extra role behaviors in the organization; and 2) among the components of self-development, work- oriented and Success-oriented, have played the most role in explaining the extra role behaviors in the organization. https://japr.ut.ac.ir/article_69569_83f33fe0c8f590a514b5fd4c158e0072.pdf