The study was an investigation of the effects of density and personal space on simple and complex task performance and on feelings of crowding on 60 female Hindu students in India. A 2 x 2 design was used. Density was manipulated by varying the number of subjects in a fixed room space (social density), and the stop-distance technique was used to measure personal space. Results revealed that complex task performance was adversely affected by a high-density condition and by the personal space of the subjects, leading to a significant interaction effect of the two variables, but no significant main or interaction effect was found for the simple task performance. The subjects with "far" personal space under the high-density condition evaluated the environment of the experimental room as most crowded, more than any other subject did.