Revising the Factor Structure of the Juror Bias Scale: A Method for the Empirical Validation of Theoretical Constructs

The application of factor analytic techniques to explore the construct and predictive validity of a popular scale used for the identification of pretrial juror bias is herein reported. A confirmatory factor analysis (CFA) was employed on the Juror Bias Scale (JBS) scores of 301 participants, but empirical findings did not support the theoretically derived single-factor scales of Probability of Commission and Reasonable Doubt. Empirically driven alternative models were generated using exploratory factor analysis. The JBS scores of an additional 301 participants were then employed to cross-validate the initial findings using nested modeling CFA. The empirical model achieved a significantly improved fit over the theoretical model and resulted in the elimination of approximately 30% of the original items with no attenuation in the scale's ability to predict juror verdicts. Moreover, a theoretical reorganization of the items was consistent with the empirically derived model and provided a rationale for altering the scoring of the JBS which, in turn, maximized its predictive validity. The use of CFA techniques to aid in the development of scales assessing jury attitudes and biases is discussed.     

Strontium-90 as an indicator of time since death: a pilot investigation.

The results of a pilot investigation are presented. The study aimed to show that the presence of radioactive strontium-90 in human bone could be used as evidence of active uptake during life. In this way the time since death of the individual could be identified as occurring before or after the date when atmospheric levels of radioactive strontium were at a peak in the early 1960s. The results of this initial investigation were encouraging but further detailed analysis is required on a substantially larger sample of material spanning a more controlled time period.     

Low self-control, rational choice, and student test cheating

Using scenario-based survey data from a sample of 330 university students, this study examined the effects of low self-control, rational choice variables, and control measures on intentions to cheat on a college exam. A moderate bivariate association was observed between low self-control and cheating intentions. However, a series of multivariate regression equations showed that low selfcontrol did not have a significant effect on intentions to cheat once the influence of other variables, especially anticipated shame, were controlled. Furthermore, findings supported the rational choice framework in explaining student decisions to cheat. Implications regarding these findings are discussed.     

A constitutional evaluation of statutory and administrative impediments to voluntary sterilization

States, administrative agencies, hospitals, and physicians have placed significant limitations on the availability of elective sterilization (absolute prohibitions, requirements of spousal consent, age-parity requirements, and marital requirements). These limitations have presented obstacles for individuals seeking sterilization as a means of contraception. Analysis reveals that an individual should have a right to sterilization. However, to obtain a sterilization the individual must either comply with statutory requirements where they exist or challenge their constitutionality. If the restriction is the product of "state action," it may be challenged in the courts. Only hospitals of a "public" character, however, are subject to the constitutional mandates. If the individual is limited geographically, financially or otherwise, to a "private" hospital, he will not be able effectively to exercise his right to be sterilized.     

The Court of Public Opinion: Lay Perceptions of Polygraph Testing

We sampled a total of 411 participants and randomly assigned them one of three brief trial vignettes that contained either no-polygraph evidence, evidence of a passed polygraph test, or evidence of a failed polygraph test. Participants rendered guilt judgments and answered a series of questions concerning the trial in particular, and polygraph tests in general. Similar to previous studies on the impact of polygraph evidence on jurors' guilt judgments, this sample of jury-eligible adults indicated that they did not find polygraph test evidence to be persuasive. Moreover, it mattered little to participants whether the results indicated the defendant passed a polygraph test, or that he failed a polygraph test. However, when our findings are compared to those of previous surveys involving experts in the field of psychophysiology, they differ in a number of important respects. The implications for decisions regarding admissibility (e.g., U.S. v. Alexander, 1975 and U.S. v. Scheffer, 1998) are discussed.     

Evaluation of a halfway house for women

A halfway house for female offenders in Long Beach, California was evaluated by comparing the number and severity of offenses of graduates of the house to those of a matched group of women released in the same area and period. The groups had comparable criminal histories. A U.S. Bureau of Prisons index was used to classify the severity of offenses. Results indicated that the halfway house reduced both the number and severity of offenses. This conclusion withstood a review of the threats to validity. The policy implications of the finding are discussed.     

Recounting Graphic Sexual Abuse Memories in Therapy: The Impact on Women's Healing

This retrospective study investigates the impact on women's functioning of recounting during their therapy the graphic details of sexual abuse they had experienced in childhood. Fifty-nine participants residing in Southern Ontario were divided into two groups: those who spent more time (N=19) versus less time (N=40) in therapy recounting graphic abuse details. Results revealed that the group who had spent more time recounting abuse memories: (a) had mean functioning scores that were significantly lower before and during therapy, but that did not significantly differ after therapy; (b) recovered more memories of abuse during therapy, and (c) were more likely to have participated in hypnosis, and to report having been encouraged to remember details of abuse. Participants rated as most therapeutic those approaches that assisted them to increase their understanding of the abuse. Strategies related to acceptance, understanding, and making meaning were most important in promoting healing.     

Juvenile and Adult Offenders Arrested for Sexual Homicide: An Analysis of Victim–Offender Relationship and Weapon Used by Race*

Abstract: Limited information is available on racial offending patterns of sexual homicide offenders (SHOs). This study used a 30‐year U.S. Supplementary Homicide Reports sample of SHOs arrested in single‐victim situations (N = 3745). The analysis strength was used to determine whether the findings yielded meaningful patterns for offender profiling. Several important findings emerged for the juvenile offenders. Juvenile White SHOs were likely to target victims with whom they shared a mutual relationship. In contrast, Black juveniles were equally likely to murder strangers and those with whom they had prior and familial relationships. Notably, no juvenile Black SHOs were arrested for murdering intimate partners. Juvenile White SHOs were twice as likely to use edged weapons as their Black counterparts. Black juveniles, conversely, were more likely than White juveniles to use personal weapons. Beyond these findings, known victim–offender relationships and weapon used may not have significant utility for investigators in identifying the SHO race, even after controlling for offender age. Limitations and future directions are discussed.