The purpose of this study was to investigate the relationships between early adult attachment styles, self-perceptions and other's-perceptions (participants' impressions from their close friends) in friendships, and also to examine the effects of attachment styles and discrepancies between participants and their friends in terms of self-perceptions on evaluations of their relationships. Participants, 210 undergraduates, were asked to pair with their same-sex close friend in class and answered several questions. Results showed that "avoidance" attachment dimension was generally negatively related to positive self-perceptions in friendships. Also, similar tendencies were obtained on other's-perceptions. Moreover, the discrepancies between participants and their friends in terms of evaluations of their relationships increased as "avoidance" dimension increased. These results suggest that "avoidance" dimension is related to low levels of adjustment in the friendships. In addition, the discrepancies between self-perceptions of "sociability" were positively and those of "attractiveness" were negatively related to the discrepancies between evaluations of relationships.