A study examined gender and student group differences in stereotypes and confidence for first-year and more advanced computer science (CS) students. In the spring of 2001, 18-page questionnaires were distributed to first-year students (n=30: 21 females, 9 males) and students enrolled in an introductory CS course (n=32: 11 females, 21 males) designed for students considering majoring in CS. Findings showed no gender difference in computer confidence for first-year students, but females in CS had significantly lower confidence than did males. (Contains 27 references.) (Author/BT)