The relative importance of factors such as student characteristics, prior contact with the other race, opportunity for contact in the present situation, and conditions of inter-racial contact are examined in order to determine how they predict the social outcomes of inter-racial contact in high schools. Multiple regression analyses are performed which relate the total set of predictor variables to each of five dependent variables: friendly contact, friednship relations, avoidance, unfriendly contact, and opinion change. Data obtained are from both black and white students in all of the Indianapolis, Indiana public schools. Findings are consistent with previous work, which indicates that interracial hostility at the individual level may be in part a manifestation of a generally aggressive personality, and that positive prior opinions do not lead to more positive opinion change. Among the findings, which are presented in a tabular summary, are: that more early positive interracial contacts contribute to more interracial contact of any kind; that family attitudes are a somewhat more potent influence than peer attitudes among black students with the reverse for whites; and, that there is little relationship between interracial behavior and attitudes and the relative status of blacks and whites. Among whites, only the personality indicator and sex made substantial contributions to predicting unfriendly interaction with blacks. (Author/AM)