This investigation compared women's and men's desired characteristics in partners far typical short-term ('dating someone more than once' without an expectation of a short- or long-term relationship) and long-term ('dating someone for a long time' with the possibility, but not certainty, of marriage) relationships. Results indicated that (a) both women and men are more selective when selecting a long-term rather than a short-term relationship partner, and (b) women and men differ in their desired characteristics for short-term relationship partners and long-term relationship partners. The preferred characteristics of each sex support a qualified differential parental investment perspective: men see 'reproductive value' (e.g., physical attractiveness) as important for potential female partners, and women rook at 'resource acquisition ability' (e.g., earning capacity) as important for potential male partners. While there were significant differences between men and women in their desired characteristics in short- and long-term relationship partners, there were many similarities in what they seek, such as the desire for children in long-term partners and an exciting personality in short-term and longterm partners.