Phallometric assessment of rapists: A critical review of the research

There is disagreement in the literature as to utility of phallometry with rapists. The present article attempts to shed light on the basis for these contradictory conclusions. First, the theoretical rationale for assessing sexual interest via phallometry is discussed. Second, all the recent (i.e., since 1994) studies that have used phallometric assessment to measure sexual arousal in convicted rapists or self-identified sexual aggressors are individually reviewed and critiqued. Following critiques of individual studies, strengths and weaknesses of the literature are listed and overall conclusions are drawn. Lastly, needed improvements and directions for future research as to sexual preferences of rapists are discussed.