Abera, Dame (PhD)Bekele, Dereje2019-01-292023-11-102019-01-292023-11-102010-06http://etd.aau.edu.et/handle/12345678/16100Social Identity is playing a significant role in influencing people's interactions either in favorable or unfavorable directions. In view of this fact, therefore, this study was intended to examine the linkage between social identity and interpersonal relationship among Addis Ababa University students as the main objective. To realize the above set objective different components of social identity such as gender, ethnicity, and religion were taken as independent variables and interpersonal relationship as a dependent variable. Hence, the researcher has set research questions to check whether there is relationship between the independent and dependent variables and to determine the prediction power of each predictor variable on the criterion variable. The study was conducted on 338 (113 of them are females) Third and Fourth year undergraduate regular students attending their studies at the main campus of Addis Ababa University during the Academic Year of 2009/2010. The participants were selected by the use of simple random and purposive sampling techniques. The study also relied on quantitative method of data collection and analysis. And the researcher used questionnaires as a data collection tool. The participants ' social identity was measured using a 26 items adapted from Aspects of Identity Questionnaire (Cheek, 2002), and their Interpersonal relationship is also measured by a 26 items which was adapted from intergroup interaction scale (Plant, Butz & Taratakovsky.2009). The data were analyzed by Pearson Product Momentum Correlation and Step-wise regression statistical techniques analyzed with the help of Statistical package for social scientists (SPSS) version 13. O. The study revealed that positive and significant relationships were found between all independent variables and the dependent variable. Moreover, gender, ethnic, and religious identities were independent significant predictors of interpersonal relationship. However, among the three independent variables ethnicity was found to be the most prominent determinant of interpersonal relationship among the subjects. Hence, interpersonal relationship of students was mainly dependent on similarity of ethnic background. Finally, the study had suggested some recommendations to address the identified problems.enInterpersonal RelationshipThesis