One recent theory which seeks to deal with factors related to occupational choice is that of Roe (1956;1957). Roe's theory evolved from the concept of the close relationship between an individual's interests and needs and his occupation, and the 1 relationship between early life experiences and the development of these interests and needs. According to the theory the parents create a particular psychological climate by the manner in which they satisfy or frustrate the early needs of the child. As a result, a basic direction of attention is developed either toward persons or toward ; non-persons. This, in turn, results in pre-.; dictable patterns of specific interests in the adult in terms of the field to which ' •J he will apply himself. His vocation is one of these. Roe's hypothesis was not supported in an investigation by Grigg (1959). The present study seeks to further the investigation of predictions based upon her theory.The specific hypothesis derived from Roe and tested in the present investigation is that ministerial students will perceive their parents as having been more overdemanding and less rejecting than will a group of chemistry majors. Roe does not devote much attention to the possible influence on occupational choice of differences between the attitudes of fathers and mothers. In this study, analysis is made || J Now at the University of Richmond.

The prisoner's dilemma game was played by Ss seated either physically elose together or separated by a substantial physical distance. With greater distance, there were significantly fewer mutually cooperative choices, smalIer earnings, and greater differences in outcome between the two players. Mutual cooperation among Ss in the far condition remained relatively infrequent throughout the trial sequence and extinguished completely in later trials.

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