The idea for this monograph came from discussions among graduate faculty about how to deal with the issues of race, ethnicity, and other controversial issues in the classroom and around campus. The number of racially and ethnically diverse students on U.S. college campuses has increased dramatically, and the most significant aspect is the diversity within these groups. The expansion and complexity of these groups necessitates a review of the current theories written for adolescent and college student populations. Reexamining foundational identity theories and exploring theories that address racial identity development can provide faculty and administrators with the ability to respond appropriately to students. It must also be recognized that demographic shifts are occurring within faculty and administrative ranks. Interactions in the classroom are changing as students who have not previously communicated with members of other racial and ethnic groups encounter faculty of diverse backgrounds. The monograph focuses on educating faculty and administrators about the developmental issues faced by students of different racial, ethnic, or social groups as they attempt to define themselves during the college years. An appendix contains a case study of defining academic diversity. (Contains 182 references.) (SLD)