The Forward Specialization Coefficient: Distributional Properties and Subgroup Differences

For both public policy and theoretical reasons, criminologists have been interested in the degree to which criminal offenders specialize in particular crimes. Traditionally, offense specialization has been measured with the forward specialization coefficient (FSC). Recently, the FSC has been criticized for being interpretationally obtuse and having no known sampling distribution. In this paper we examine both the interpretational and the statistical properties of the FSC. We conclude that (1) it has an intuitive interpretation that is no less useful than either a standard correlation coefficient or its competitors, (2) its sampling distribution is approximately normal, and (3) the conventional formula for the estimated standard error of the FSC may underestimate the true standard error in some circumstances. With these results behind us, we propose and illustrate both a parametric statistical test for the difference between two independent FSCs and two nonparametric alternatives.     

A path analytic approach to the validation of a taxonomic system for classifying child molesters

This study examined the validity of the most recent revision of a taxonomy for child molesters developed at the Massachusetts Treatment Center (MTC:CM3). The taxonomy is distinguished both from earlier versions of this system and from other systems, by three major changes: (a) the partitioning of the regressed/fixated dichotomy into two separate factors-level of social competence and degree of fixation on children, (b) the introduction of a new type (narcissistic) to fill an empirically determined gap between the object-related offender and the antisocial, exploitative offender, and (c) the differentiation of the violence in the sexual offense into nonsadistic and sadistic components. MTC:CM3 was used to classify 177 child molesters who were committed to the Treatment Center. Variables coded from the clinical files were rationally grouped according to developmental period and subjected to principal-components analysis (PCA). The PCA-derived components then were entered into a series of regression analyses. The resulting three path models indicated that the new subtypes created by the aforementioned refinements had distinct developmental courses and adult adaptations.     

Rent-seeking in the deregulatory environment: State telecommunications

Proponents of rent-seeking theories argue that firms pressure and reward politicians and bureaucrats to pursue favorable policies so they can achieve higher than normal, market returns. In an era of deregulation, often with long transition periods toward unregulated competition, how do firms develop specific political strategies to achieve success in rent-seeking? Deregulation of telecommunications at the state level allows comparison of the strategies of the seven firms created in the AT&T divestiture in more than one political jurisdiction. One firm, U S West, has pursued the most aggresive political strategy. This paper argues that U S West executives correctly perceived that the political environment in which they operated differed greatly from that in the rest of the country and that a different deregulatory strategy was appropriate. The firm exploited institutional differences by bypassing state regulators and going directly to state legislators to get favorable policies.