The purpose of this study was to verify the prejudice and discrimination against females and the aged in recruitments of professorships and assignments to administrative positions of universities, and to contribute to motivating academic efforts and practices for the provisions of equal opportunities to them in those kinds of purviews. For the study, 281 assistant and associate professors were sampled from four-year universities all over the nation. Two sampling methods, such as purposive and random samplings, were employed for the convenience of data collection. Some questions consisted of demographic variables including gender and age, and others research articles and publications achieved in the last four years. To test the effect of gender and age, T-test and ANOVA were applied through SPSS program. The former method was used to compare the research performances between male and female professors, and the latter between age generations(thirties, forties, and fifties and above). The following foundings were attained from this survey study: The differences were not significant at p<.05 or above between male and female professors in all their research performances during the last four years, including theses in international or domestically famous research journals, publications, and translations in their majors. There were significant differences at this level between the three generations in only two research performances. The lower generation, the more joint theses in international journals, and the reverse in single-handed publications of majors. other research performances had no significant difference between those generations. Hence, this study concluded that prejudices and discriminations against females and the aged were found invalid in the recruitments of professorships and the assignments to administrative positions in universities.