Figure and Ground in the Perception of Crime Severity

Existing group tensions provide a convenient background against which one might both judge the severity of a violent crime and understand the underlying motivation for such an act. By changing the presented context, one should be able to influence the perceived severity of the crime. In the present experiment, 33 Israeli policemen were presented with a series of vignettes describing incidents of an assault with bodily harm. Information included in the incidents was varied systematically according to a 4-way factorial design: Context (Extremist or Criminal), Identity of Assailant (Jew or Arab), Identity of Victim (Jew or Arab), and Degree of Bodily Harm (Low or High). The participants were asked to rate the severity of the assault and of their understanding of the assailant's motivation. The findings are discussed in terms of attributional tendencies.     

Fisher information in randomly sampled sib pairs and extremely discordant sib pairs in genetic analysis for a quantitative trait locus

The conditional mixture likelihood method using the absolute difference of the trait values of a sib pair to estimate genetic parameters underlies commonly used method in linkage analysis. Here, the statistical properties of the model are examined. The marginal model with a pseudo-likelihood function based on a sample of the absolute difference of sib-traits is also studied. Both approaches are compared numerically. When genotyping is much more expensive than screening a quantitative trait, it is known that extremely discordant sib pairs provide more powerful linkage tests than randomly sampled sib pairs. The Fisher information about genetic parameters contained in extremely discordant sib pairs is calculated using the marginal mixture model. Our results supplement current research showing that extremely discordant sib pairs are powerful for the linkage detection by demonstrating they also contain more information about other genetic parameters.     

SEX AND WILLINGNESS TO MOVE FOR OCCUPATIONAL ADVANCEMENT: SOME NATIONAL SAMPLE RESULTS

The comparative willingness of men and women to be geographically mobile for occupational advancement and the contributions of various factors to this relationship are explored using national survey-data. Variables identified by past theory and research as mediating the association between sex and willingness to move did explain a substantial amount of variance in willingness to relocate in the entire sample and subsamples of married respondents and respondents in dual-earner couples. However, in each case, sex continued to explain significant additional variance in willingness to move Reasons for this finding and implications for further research are explored.     

Did Divorces Decline After the Oklahoma City Bombing?

The Oklahoma City bombing in April 1995 was an act of terrorism that had many potential influences on the city and state, including influences on families. We analyzed divorce data from 1985 to 2000 for all 77 counties in Oklahoma to assess the divorce response to the Oklahoma City bombing. Our prediction was that divorce rates in Oklahoma would decrease in response to the bombing, a prediction derived from two different theoretical orientations, terror management theory and attachment theory. We test this prediction in the context of two relatively powerful quasi‐experimental designs, an interrupted time series design, and a nonequivalent control group design. We analyze the time series data with polynomial regression. Results suggested that there were lower observed divorce rates following the Oklahoma City bombing than the prevailing 10‐year cubic divorce trend would have predicted, with the effect dampening over time. We analyzed the nonequivalent control group design using an analysis of covariance (ANCOVA) linear model to compare counties in and around Oklahoma City to those farther away, and to compare metropolitan to nonmetropolitan counties in Oklahoma. In each case, divorces were lower in the predicted directions.     

Critical Elements of Criminal Behavior Explanation*

Many theorists have suggested what might be considered elements necessary to committing a criminal act, but no one has attempted to formulate and test a model of criminal behavior which includes the elements appearing most often in the literature: motivation, freedom from social constraints, skill, and opportunity. This paper presents a review of conceptual problems in using two of these elements, followed by a multiplicative model of criminal behavior containing all four elements. The model is then utilizen date pertaining to the pertaining to the purchase of stolen merchandise. All four elements are implicated in this activity.     

Estimation in the multipath change point problem for correlated data

In many experiments, several measurements on the same variable are taken over time, a geographic region, or some other index set. It is often of interest to know if there has been a change over the index set in the parameters of the distribution of the variable. Frequently, the data consist of a sequence of correlated random variables, and there may also be several experimental units under observation, each providing a sequence of data. A problem in ascertaining the boundaries between the layers in geological sedimentary beds is used to introduce the model and then to illustrate the proposed methodology. It is assumed that, conditional on the change point, the data from each sequence arise from an autoregressive process that undergoes a change in one or more of its parameters. Unconditionally, the model then becomes a mixture of nonstationary autoregressive processes. Maximum-likelihood methods are used, and results of simulations to evaluate the performance of these estimators under practical conditions are given.     

The role of health care ADR (alternative dispute resolution) in reducing legal fees

An increasingly complex health care system undergoing rapid changes is an ideal set-up for frequent conflicts among the numerous participants. While conflict is inevitable, the manner in which it is handled can markedly affect the outcome of the dispute and the future relationship of the parties, as well as the emotional and financial cost of the dispute. This article presents an overview of the principles and processes of alternative dispute resolution (ADR), and describes how these processes are currently being used to resolve health care disputes.