Abstract
It has been suggested that Pellegrini's finding of a strong correlation between astrological birth sign and the Femininity scale of the California Psychological Inventory (CPI) may be mediated by climatic variables during pregnancy. The present study tested the season of birth hypothesis with 615 South African college students by simply replicating Pellegrini's study in the southern hemisphere, where the seasons are the reverse of those in the northern hemisphere. No significant relationship was found between birthdate and any of the scales of the CPI, and thus both the season of birth and the astrological “theories” of personality were rejected.