Since 1990, through five distinct phases, my research team has surveyed and assessed the values and worldviews of undergraduates around the world (but primarily in the United States). Each phase has keyed on a specific theme, including the self or personhood. The overall objective has been to determine the extent, character and implications of a “postmodern turn”–i.e., a worldview-shift away from both traditional and modern assumptions/values-among tertiary-levle students. Secondary questions explored included, a) whether undergraduates at public universities are “more postmodern” than those who attend private, church-affiliated colleges; and, b) to the degree that a postmodern turn is found, whether undergraduates are in general more inclined to a worldview of extreme self-referentiality (here characterized as “radical postmodern”) on the one hand, or a tested or “anchored” self-referentiality, here termed “transmodern,” on the other. The background, rational and methodology of the work are summarized, as are key concepts such as worldviews and the nature of postmodernity.