The Study attempted to resolve some problems of past research on fear of success (Horner, 1968) and investigated personality and behavioral attributes associated with fear of success (FOS). Two competitor variables (sex and physical attractiveness) were manipulated as well as two subject variables (level of FOS and physical attractiveness). Sex of competitor was found to interact significantly with subjects' level of attractiveness and FOS. This interaction was discussed in terms of subjects' degree of certainty of their attractiveness as well as their level of FOS. Additionally, low attractives performed significantly better than high attractives in both the competitive and noncompetitive situations. This was discussed in terms of social steroetypes of attractive and unattractive women. (Author)