Assessing the effect of batterer program completion on reassault using propensity scores

Recent experimental evaluations have suggested little or no effect of batterer programs on reassault but are compromised by methodological and analytical issues. This study assesses program effect using propensity score analysis with a quasi-experimental sample in an attempt to address these issues. The sample consisted of 633 batterers and their partners from three geographically dispersed batterer programs and a 15-month follow-up with their female partners. Subclassification on propensity scores was used to balance program completers and program dropouts. The propensity score was estimated as the probability of completing the batterer program conditional on observable characteristics. Direct adjustment indicates that program completion reduced the probability of reassault during the 15-month follow-up by 33% for the full sample, and by nearly 50% for the court-ordered men.     

Heterogeneity in the association between social-emotional adjustment profiles and deviant behavior among male and female serious juvenile offenders

This article examines the relation among gender, social-emotional adjustment, and deviant behavior among serious juvenile offenders. A sample of 105 adolescent offenders completed questionnaires assessing social-emotional characteristics and self-reported involvement in deviant behaviors. Results indicate significant associations between distress and restraint in predicting deviance, a finding that was invariant across gender. Analysis of four distinct social-emotional profiles found that membership in the reactive group was associated with the greatest amount of deviant behavior. Results also indicate that not only do serious offending girls internalize more than serious offending boys, they appear equally likely to externalize. However, although boys exhibit less distress than girls, those boys who report high rates of deviance may exhibit internalizing and externalizing problems similar to girls. The use of social-emotional measures in general, and distinct profiles in particular, may aid in targeting specific programming and treatment in an effort to provide offenders with more effective interventions.     

Validation and implementation of the PowerPlex 16 BIO System STR multiplex for forensic casework

The PowerPlex 16 BIO multiplex short tandem repeat (STR) system contains the 13 CODIS loci (FGA, TPOX, D8S1179, vWA, D18S51, D21S11, TH01, D3S1358, CSF1PO, D16S539, D7S820, D13S317, and DS5S818), plus two pentanucleotide repeat loci (Penta D and Penta E) and the sex-identifying locus. Amelogenin. The PowerPlex 16 BIO System is optimized for use with the Hitachi FMBIO gel imaging systems. A consortium of seven independent laboratories collaborated to perform the studies defined by the FBI standards for performing a developmental validation, including the evaluation of sample concordance, percent stutter determination, nonprobative casework, precision, sensitivity, mixture determination, effect of substrates, the impact of environmental insults, and species specificity. All samples tested for concordance were consistent except for one sample from the Virginia Division of Forensic Science database that displayed discordance at D13S317, a locus whose primer sequence was altered. Stutter values were comparable to those of other STR multiplex systems, the precision was comparable to other multiplexes analyzed by gel electrophoresis, the DNA profiles were unchanged by the substrate upon which the blood samples were placed, and the nonprobative casework samples re-typed for the PowerPlex 16 BIO System were consistent with previous typing results. When greater than 0.125 ng of DNA was placed into the PowerPlex 16 BIO System amplification reaction, a full profile was generated by all laboratories. The mixture study results were comparable to those reported for other multiplex systems, the environmental study demonstrated a loss of larger molecular weight loci when samples were incubated at elevated temperatures for a prolonged period of time, and the only notable cross species hybridization was observed with primate DNA samples. This extensive validation work performed demonstrates that the PowerPlex 16 BIO System provides STR data of a quality comparable with other PowerPlex STR multiplex kits as well as other widely used STR multiplexes and is thus suitable for evidentiary casework analysis as well as database sample profiling.     

The validity of Niederhoffer's cynicism scale

Arthur Niederhoffer's (1967) Behind the Shield is widely regarded as a classic in the policing literature, yet problems associated with measurement of the key latent trait, cynicism, have limited the extent to which conclusions may be drawn from Niederhoffer's work, as well as some subsequent police cynicism research. In this article, Niederhoffer's research is revisited using survey data recently collected from a random sample of 499 Philadelphia police officers. The analysis begins by examining the validity of Regoli's (1976) modified cynicism scale from the perspective of Item Response Theory (IRT), using Rasch modeling techniques in an effort to more fully understand the scale's measurement properties. Then, Niederhoffer's primary research hypothesis is revisited. Three main findings are drawn: (1) the Likert response categories are being used by respondents as intended; (2) some of the scale items exhibit gender and race bias; and (3) the scale can be improved by dropping several items. Once the scale is adjusted, the findings indicate that the relationship between officer cynicism and years of service is slightly stronger than when the scale is used in its original form. Further, regression analyses yield theoretically consistent findings for the relationship between cynicism and one job-related measure (departmental disciplinary charges).     

A Table for Two: Jiang Zemin and the PLA

Chinese leaders make many of their most sensitive decisions away from the confines of formal bodies, and top PLA officers are involved in these informal discussions. Jiang's relationships with the military as an organization, as well as with its individual leadership, are important determinants of Chinese posturing on a host of crucial issues. Although there are certainly personal and professional differences, PLA interests do not strongly diverge from those of Jiang and the civilian leadership; they need each other to accomplish their respective goals; and Jiang has performed well to establish his authority, retaining control over the military and decision-making process. Jiang's maneuvering to secure Vice President Hu Jintao's appointment to the Central Military Commission (CMC), the implications of the appointment for Hu's relations with the PLA, and Jiang's working relations with the PLA High Command are illustrative of this fact.