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The Validity of Phallometric Assessment With Rapists: Comments on Looman & Marshall (2005)Department of Psychology, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta, T1K 3M4, Canada, martin.lalumiere{at}uleth.ca
University of Lethbridge and McMaster University, Canada In a recent article Looman and Marshall (2005) questioned the validity of phallometric assessment of rapists based on the results of a study of incarcerated rapists and child molesters. In this commentary we offer (1) a critique of the methods used and conclusions reached by Looman and Marshall and (2) a discussion of important methodological issues relevant to phallometry. We conclude that the correct inference from Looman and Marshall's study is that rapists, as a group, show a pattern of sexual arousal to audiotaped scenarios of coercive and non-coercive sex that significantly differs from the pattern of groups of non-sex offenders, in agreement with the general literature on this question.
Key Words: Phallometry Sexual arousal Sexual preferences Rapists Discriminative validity Methodology
Sexual Abuse: A Journal of Research and Treatment, Vol. 19, No. 1,
61-68 (2007) | ||