In Hahn’s research, twenty-four volunteers from an interdisciplinary team of modern languages, social studies, and art students in the Nebraska University Secondary Teacher Education Program (NUSTEP), three secondary education professors, three elementary and bilingual education professors, the principal, and the first grade team co-leaders got involved in this project planning and teaching. Eventually, the students broadened their understanding of skills for global citizenship teaching as well as recognized the need for core values as opposed to sheer factual information. Nevertheless, the final effects of the educational environment or experience and attitude development or change were very difficult to measure, unless there are more infinite numbers of variables than in public school settings (Hahn, 1983).