The present study investigated (a) the underlying dimensions of different measures related to identification , categorization, ingroup, bias and contact conditions, and (b) relations between two groups related to an important social controversy over time. Questionnaires were administered to veiled (minority) and unveiled (majority) Turkish female university students during the fall of 1996 and the spring of 1998. Results of factor analysis revealed three factors, namely: tolerance, including percieved outgroup, homogeneity, ingroup, bias, and individuation; identification including identification and percieved ingroup homogeneity; and contact conditions, including rating of pleasantness, frequency and feelings of anxiety. Comparison of groups over time revealed that although the minority group reported lower tolerance for outgroups than the majority the pattern was reversed in 1998. In addition, the majority reported greater negative contact contact conditions of contact in 1998 than in 1996. No time-related differences were revealed for the minority with respect to reports of contact conditions. Results were discussed with respect to sensitivity of group relations to social context and to Social Identity Theory. Copyright (C) 2000 John Wiley & Sons, Ltd.