Abstract
Portable Rod-and-frame Test (RFT) scores and the Jackson Personality Inventory (JPI) scale scores were obtained for 41 male and 41 female college students. Two partial RFT scores were computed: the summed deviations of RFT Trials 1 to 8 and RFT Trials 9 to 16. The results suggest that RFT performance of men and women is a function of different determinants and that, at least for men, performance on Trials 1 to 8 is a function of different determinants than performance on Trials 9 to 16. To explain a major portion of the variance of RFT performance an arousal interpretation appears useful for men and an interpretation in terms of energy level for women.
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