Surprise Moves in Negotiation

In a game-theoretic model of a negotiation, a surprise move always has the potential to create uncertainty. This uncertainty can be beneficial to just the player making the move, or it can be beneficial to all the players involved. Moreover, there are situations in which a surprise move can change the very nature of the interactions. In particular, if the interactions follow specified procedures, the surprise move can reduce the effect of the procedures on the outcome. By showing that these results hold in the precisely defined world of game theory, it is argued that they are applicable in the more ambiguous world of real negotiations. At a broader level, the game-theoretic results imply that there is a sense in which the context can never be known for sure. The results also imply that the uncertainty created by surprise moves can be strategically useful.     

Approval voting in practice

Several leading professional associations have recently decided to use approval voting (AV). The largest of them, The Institute of Electrical and Electronics Engineers, Inc. (IEEE), with more than 300,000 members, adopted AV in response to practical political problems with conventional plurality elections of precisely the sort that AV was designed to solve. This paper analyzes results of the first three multicandidate elections conducted by the IEEE using the new system. Issues examined include participation rates, use of multiple votes, patterns of shared support, majority rule, AV-dominance, effects on outcomes, and encouragement of candidate entry. In general, AV appears to have had a successful test.     

External Validity in Policy Evaluations That Choose Sites Purposively

Evaluations of the impact of social programs are often carried out in multiple sites, such as school districts, housing authorities, local TANF offices, or One‐Stop Career Centers. Most evaluations select sites purposively following a process that is nonrandom. Unfortunately, purposive site selection can produce a sample of sites that is not representative of the population of interest for the program. In this paper, we propose a conceptual model of purposive site selection. We begin with the proposition that a purposive sample of sites can usefully be conceptualized as a random sample of sites from some well‐defined population, for which the sampling probabilities are unknown and vary across sites. This proposition allows us to derive a formal, yet intuitive, mathematical expression for the bias in the pooled impact estimate when sites are selected purposively. This formula helps us to better understand the consequences of selecting sites purposively, and the factors that contribute to the bias. Additional research is needed to obtain evidence on how large the bias tends to be in actual studies that select sites purposively, and to develop methods to increase the external validity of these studies. © 2012 by the Association for Public Policy Analysis and Management.     

Value Creation: A Coordination Game

Strategy in negotiation is often modeled as an activity involving the interplay of creating and claiming behaviors. Theorists have advanced differing perspectives on what game best describes the consequences of choosing one approach over the other. David Lax and James Sebenius offer the prisoner's dilemma game as a model, whereas Richard Walton and Robert McKersie's analysis is consistent with a version of a classic coordination game — namely, the game of “chicken.” This article revisits these two perspectives and shows that the Walton–McKersie view is applicable to a broad range of contexts. In particular, it demonstrates how what is commonly called the tension between creating value and claiming is better understood as the simple tension between a high‐risk and a low‐risk choice.     

The detection of sedatives in hair and nail samples using tandem LC-MS-MS

Drug screening methods were developed to detect alprazolam, clobazam, clonazepam, diazepam, midazolam, oxazepam, temazepam, triazolam, zopiclone, and selected metabolites in human hair and nail samples employing liquid-liquid extraction and tandem liquid chromatography-mass spectrometry (LC-MS-MS). Hair and nail samples were obtained from patients who had recently discontinued or were currently prescribed one or more of the targeted drugs. Prazepam was used as the internal standard for all compounds. Some components in the hair matrix gave the same transitions as some of the analytes but did not compromise the analyses because their retention times differed from those for the target compounds. The analytical run time was 8-10min. Results of the hair analysis of a DFSA victim are also presented.     

The Prevalence of Mental Health Problems in Men Arrested for Domestic Violence

The problem of male perpetrated intimate partner violence (IPV) is widespread. In an effort to identify risk factors for perpetrating IPV, researchers have examined mental health problems among perpetrators. However, the majority of research in this area has examined personality psychopathology and/or limited their investigation to posttraumatic stress disorder (PTSD) or depression. Thus, the present study examined self-reported Axis I psychopathology among men arrested for domestic violence (N?=?308). Results replicated past research showing high rates of PTSD and depression. In addition, the prevalence of generalized anxiety disorder (GAD), panic disorder, social phobia, and alcohol and drug disorders were very high. All types of mental health problems were positively associated with aggression perpetration. Males meeting probable diagnostic classification reported significantly more frequent aggression than males not meeting diagnostic classification, even after controlling for social desirability. Directions for future research and implications of these findings are discussed.     

The impact of sex offender’s interpersonal style,treatment readiness and the therapeutic alliance on treatment gain

The impact of internal responsivity factors and therapeutic process variables on intra-individual within-treatment gain in sex offenders has received little empirical attention. This study examined how (1) internal responsivity factors, including treatment readiness and interpersonal style, and (2) therapy process variables, including the therapeutic alliance and the presence of ruptures in the therapeutic relationship, impacted intra-individual within-treatment gain. Participants comprised 71 sex offenders who participated in group-based sex offender treatment programmes in prison or the community. Results showed that offender hostile-dominance and the affective and interpersonal characteristics of psychopathy, as measured by the Psychopathy Checklist: Screening Version Factor 1 score, negatively impacted treatment gain. Pre-treatment readiness, client ratings of the therapeutic alliance and whether or not there were ruptures in the therapeutic relationship had no association with within-treatment gain. The strength of the therapeutic alliance later in treatment did not moderate the relationship between offender interpersonal style, or psychopathy, and treatment gain.