Many studies have demonstrated that psychological needs and occupational values differ for males and females. An investigation of the interaction effects between occupation and gender compared the scores of men and women in the same occupations on scales measuring psychological needs, occupational values, and concerns about worker traits and job characteristics. Males (N=148) and females (N=245), employed in social work, radiological technology, and secondary social studies teaching, completed the Hall Occupational Orientation Inventory. A multiple-factor analysis of variance performed on each variable tested for significant interactions and significant differences between occupation, gender, and race. Results indicated that concerns about adequate physical capacity for the job were significantly greater for women. Women demonstrated less needs for risk-taking and greater needs for security, and were less people-oriented than men. Significant interactions between occupation and gender occurred on five personality need construct scales (Creativity-Independence, Esteem, Personal Satisfaction, Routine-Dependence, and People Orientation), while no significant interactions occurred on the situational variables scales. Results imply that separate theoretical formulations about vocational choice of men and women may be necessary to the extent that the theories are based on these five personality constructs. (Author/NRB)