Background/Context: Student utilization of complex enrollment patterns has been identified as a significant recent development in higher education. Nearly a dozen different multi-institutional attendance patterns have been identified, including co-enrollment. Co-enrollment is simultaneous enrollment at two or more colleges or universities during…

The summer school sessions that colleges offer their undergraduates are sometimes considered supplementary activities and are rarely perceived as central to a college's mission or effectiveness. However, analyses of college transcript data that tracked a nationally-representative sample of undergraduates for several years and through multiple…