The purpose of this research was to relate perceptions of occupational discrimination to the actual occupational opportunity structure in American society. The latter refers to the relative openness of various occupations to individuals possessing certain characteristics that are, in fact, differentially distributed among occupations. Both cohorts of students completed questionnaires that included 2 scales of 21 occupations seeking ratings of occupational discrimination against women and African Americans. The sample was comprised of 128 men and 213 women, a part of an entering class at a large state university in the northeast (the same university but another campus was used in a 1969 study). Seventy-four percent of the students were non-Latino whites. It was concluded that: (1) correspondence between the perceived and actual opportunity structure has not changed over time; each of the race-sex groups' ratings were significantly related to the census data; and (2) the relative accuracy of the four race-sex groups has changed somewhat. White females' ratings, which yielded the lowest correlations with the census data in the earlier cohort, improved the most. These conclusions suggest that the racial and gender structure of high status occupations has an accurate representation in the perception of these two cohorts of students, and that there has been only modest change in accuracy over time. (JBJ)