

Revised Sociosexual Orientation Inventory. Shortcomings of the Sociosexual Orientation Inventory: Can psychometrics inform evolutionary psychology? Behavioral and Brain Sciences, 28, 296-297 Behavioral and Brain Sciences, 28, 275-256 A mature evolutionary psychology demands careful conclusions about sex differences. Journal of Research in Personality, 41, 917-922 Sociosexual attitudes and behaviors: Why two factors are better than one. Journal of Personality and Social Psychology, 60, 870-883. Individual differences in sociosexuality: Evidence for convergent and discriminant validity.

Significant sex differences have been found between men and women on the scale, with a significantly larger correlation between the attitude and behavior facets of the SOI-R in women compared to men (proposed to be due to lower opportunity for behavior). There currently exist two variations on the SOI-R currently available in 20 languages, a 9-point response scale for integration with the original Gangestad and Simpson SOI and a 5-point response scale for the majority of subjects.įindings Main article: Sociosexual orientation It was these concerns that led Penke and Asendorpf to create the SOI-R to deal with these issues. However, serious problems were found with the original scale with respect to sociosexuality as a single dimension, its sometimes low internal consistency, skewed score distribution, and one question inapplicable to singles. Minimal research was done until interest in the topic markedly increased when Gangestad and Simpson released their 5-item Sociosexual Orientation Inventory in 1991. Sociosexuality as a concept was introduced by Alfred Kinsey to describe differences in individuals tendency to engage in uncommitted sexual relationships.
