The author examined changes in the educational and career goals of 66 young women who completed surveys in Grades 7 and 12. Participants identified desirable versus undesirable aspects of mathematics- and science-based careers to better understand the characteristics that do or do not attract women from these fields. Over time, participants' degree aspirations and interest in science, engineering, and mathematics (STEM) careers decreased. Young women liked the learning and discovery and using mathematics, and they reported enjoying STEM careers. Conversely, some of the women disliked doing the mathematics and the hard work required and reported a lack of interest in STEM fields.Key words: mathematics- and science-based careers, surveys completed in Grades 7 and 12, young women's educational and career goals