and later as GIs returned from World War II. A highpoint of gender imbalance in college attendance was reached in 1947 when undergraduate men outnumbered women 2.3 to 1. But starting then and continuing until the present in an almost unbroken trend, female college enrollments have increased relative to male enrollments. The relative improvement for females was slow at first and then increased with remarkable speed. In 1960, there were 1.60 males for every female graduating from a U.S. four-year college and 1.55 males for every female undergraduate (U.S. Department of Education, 2005, Table 247). But beginning in the late 1960s and early 1970s, young women’s expectations of their future labor force participation radically changed and their c...