One of the alleged reasons that males report lower intimacy in same-sex friendships than females is that males tend to be more competitive than females, but this assumption has not been empirically tested. In the current study, 121 Wong Kong adolescents filled out Chinese versions of the Intimate Friendship Scale and the Competitiveness Index. As predicted, females reported having more intimate same-sex relationships than males, and they scored lower on competitiveness than males. However, the correlations between scores on the Competitiveness Index and the Intimate Friendship subscales were small and nonsignificant, suggesting that the sex difference in intimacy was not a function of competitiveness.[Reproduced with permission of author(s) and publisher from: Cheng, S. T., & Chan, A. C. M. Sex, competitiveness, and intimacy in same-sex friendship in Hong Kong adolescents. Psychological Reports, 1999, 84, 45-48. © Psychological Reports 1999 Full article may be available at the publisher's website: http://ammonsscientific.com/link.php?N=9489]