Conversely, the worst-paying college majors are child and family studies, elementary education, social work, culinary arts, special education, recreation and leisure studies, religious studies, and athletic training.

FORBES: The 15 Most Valuable College Majors

"Rather than compromise their sex life" because of time demands at work or at home, "this group of go-getters seems to make sex a priority, " says Constance Gager, lead researcher and an assistant professor of family and child studies at Montclair State University, Montclair, N.

WSJ: The Sex-Housework Link