Great Analysis,But Problematic Assumptions: A Critique of Janus and Meehl (1997)

Abstract

Janus and Meehl (Psychology, Public Policy, and Law (1997), 3(1), 33-64) employed a sophisticated analysis to discover what is the actual standard that judges use in determining which sex offenders meet criteria for a civil commitment within the purviews of "sexual predator" laws. Their analysis relied on various assumptions, most of which were specified and explicated by the authors. They concluded that the judiciary does not even approach meeting the standards that it sets for itself when it comes to adjudicating the threshold for these types of commitments. Two of the fundamental underlying assumptions within their analysis may be seriously flawed, however. Using current information related to either of these assumptions, without changing any other aspect of the analysis, the ultimate finding concerning the judiciary standard would actually be reversed from what Janus and Meehl concluded.

Keywords

commitment predator judiciary standard prediction Janus and Meehl.

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References

Doren, D.M. (1998). Recidivism base rates, predictions of sex offender recidivism, and the "sexual predator" commitment laws. Behavioral Sciences and the Law, 16. 97-114.

Epperson, D.L. , Kaul, J.D. , & Hesselton, D. (1999, March). Minnesota Sex Offender Screening Tool— Revised: Development, effectiveness, and recommended risk level cut scores . Paper distributed as part of a presentation to the Wisconsin Sex Offender Treatment Network Fellows, LaCrosse, WI.

Hanson, R.K. (1997). The development of a brief actuarial risk scale for sexual offense recidivism (User Report No. 1997-04). Ottawa: Corrections Branck, Ministry of the Solicitor General of Canada.

Hanson, R.K. , & Thornton, D. (2000). Improving risk assessments for sex offenders: A comparison of three actuarial scales. Law and Human Behavior , 24(1), 119-136.

Janus, E.S. , & Meehl, P.E. (1997). Assessing the legal standard for predictions of dangerousness in sex offender commitment proceedings. Psychology, Public Policy, and Law, 3(1), 33-64.

Prentky, R.A. , Lee, A.F.S. , Knight, R.A. , & Cerce, D. (1997). Recidivism rates among child molesters and rapists: A methodological analysis. Law and Human Behavior, 21(6),635-659.