The purpose of the present studies was to examine anxiety/uncertainty management processes in dyadic intergroup encounters over four interaction periods. Qualitative and quantitative data were collected in the first study. The quantitative results revealed significant differences across time for anxiety, uncertainty, quality, satisfaction, expectations, and perceived typicality. There were no significant differences across time for personal and social identities. Correlations among the variables indicated that decreases in uncertainty and anxiety are associated with perceived quality of communication. The qualitative data revealed three themes: (1) similarities were perceived that allowed respondents to reduce their uncertainty, (2) self-disclosure allowed the respondents to get to know each other, and (3) respondents changed from basing their communication on their social identities to basing their communication on their personal identities. The results of the second study revealed consistent changes across time for positive expectations, uncertainty, anxiety, quality of communication, and perceived similarity. There also were changes across time for social identity, personal identity, perceived effectiveness, and perceived typicality, but the changes were not consistent across all points in time. Perceived similarity, positive expectations, perceived quality of communication, and perceived effectiveness correlated negatively with uncertainty and anxiety across all four periods of time.