Science and Education Publishing American Journal of Educational Research 2327-6150 3 9 2015 09 07 Evaluating Principals' Orientation towards Organizational Culture and Changes and Its Effect on Teachers' Performance 1156 1158 EN Ensieh Ahmadi MA in Educational Administration, Islamic Azad University, Boushehr Branch, Iran Meghdad Karami Seyyed Musa Golestaneh EDUCATION20153914 10.12691/education-3-9-14 2015 08 26 2015 08 31 2015 09 07 The purpose of this paper is to evaluate principals' orientation towards organizational culture and changes and its effect on teachers' performance. This is a descriptive-surveying research whose population study is 145 principals and teachers working in girl secondary school in Asaluye city among which 103 persons were randomly selected as sample based on Morgan table. Data was collected via three questionnaires asking principals' approach towards changeability, organizational culture, and teachers' performance. Validity and reliability of the questionnaires were obtained through using content and face validity, and Chronbach's Alpha (α=0.821). Some appropriate statistical indices such as frequency, mean, SD, Pearson's correlation coefficient, multi-variate regression, and ANOVA were applied to analyze the gathered data. Findings showed that changeability and principals' approach towards organizational culture has had a significant effect on teachers' performance.