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Lalumière, Harris, Quinsey, and Rice (2005) proposed a three-path model (psychopathy, young male syndrome, and competitive disadvantage) of the development of sexually coercive behavior, but none of these individual difference characteristics have been tested among partner rapists. Using a community sample in Study 1, the authors find that psychopathy is the only significant predictor of self-reported propensity for partner sexual coercion. This model is tested in Study 2 by comparing convicted partner rapists, nonsexual partner assaulters, and heterosexual child molesters. One third of partner rapists are psychopaths, and their psychopathy scores are no different from those found in correctional samples. Partner rapists have an average IQ, providing further evidence that competitive disadvantage is less characteristic of partner rapists. There is some indication that partner rapists desist with age. The authors …