How the pressure of a stiff competition for admission to medical school affects undergraduates at Yale University is examined. Results of questionnaires completed by 317 Yale undergraduates including 101 premedical students, in 1977, are presented. It was found that students do hold a fairly strong negative stereotype of the premedical student who is seen as excessively hard-working, competitive, grade-conscious, narrow in interests, less sociable than others, and more interested in money or prestige. It was also found that premeds themselves share the negative stereotype held by many others. It is indicated that the self-descriptions and occupational values of premeds suggest that some aspects of the stereotype may precede the situation while other aspects seem more likely to be situationally induced. An analysis of subgroups within the premed group is provided, with comparisons between the self-descriptions and occupational values of men and women, whites and non-whites, and science majors and premeds majoring in other subjects. It is shown that students' attitudes toward premedical students are completely independent of their evaluations of the status of physicians. (SPG)