A study used the seven elements of B. D. Ruben's Intercultural Behavioral Assessment Indices (IBAI) to investigate the concept of intercultural communication competence. Subjects, 149 foreign students enrolled in a large midwestern university in the United States, completed five questionnaires designed to measure the seven elements of the IBAI (display of respect, interaction posture, orientation to knowledge, empathy, role behaviors, interaction management, and tolerance of ambiguity). In addition, 129 American students who knew the foreign students well served as raters in the study. Results of Pearson product-moment correlations indicated significant relationships among the seven elements of the IBAI. Multiple stepwise regressions of the predictors of the seven elements indicated that: (1) predictors for display of respect include assertiveness, rewarding impressions, perceptiveness, and social anxiety; (2) orientation to knowledge was best predicted by amount of disclosure; (3) relational roles behavior and tolerance of ambiguity were best predicted by public rituals; and (4) interaction management was best predicted by responsiveness. Findings suggest that the IBAI is a reliable instrument for measuring intercultural communication competence. Further research, however, needs to consider personal attributes, psychological acclimation, and cultural awareness for communicative competence in different cultures. (Two tables of data are included; 50 references are attached.) (RS)