A study of male secondary school principals' reactions to the resumes of fictional candidates for the assistant principalship suggested that experience is the most important criterion considered by principals assessing candidates, and that the sex of the candidate may be relatively unimportant. Three groups of male principals were asked to choose between two fictional candidates. One group of 28 selected respondents was not told the sex of either applicant. A second group of respondents, representing 40 percent of a randomly selected sample of 150 principals, was told that the first applicant was male and the second female. The third group, comparable to the second, was told that the first applicant was female and the other male. Approximately 90 percent of the respondents in each group selected the second candidate. Over 50 percent of the respondents cited experience as a major factor in the selection process. Other factors cited were a candidate's educational background, extracurricular activities, academic record, age, and specific skills. Only two percent cited sex as a contributing factor. This report includes a review of relevant literature, discussions of the methodology and findings, recommendations for further study, and a bibliography. The two resumes used are also reproduced. (PGD)