A new theory of voting: Why vote when millions of others do

Conclusion I believe to have shown that a signalling model of voter behavior is bothconsistent with neo-classical economic theory, and in agreement withmany of the important features of the political system. I cannot provethat the theory is a correct one, only that the assumptions appearreasonable, that these assumptions lead to some testable predictions, andthat many of these predictions agree with the available evidence.The argument may appear to be discomforting to some; I often findit so. For the view here is that important decisions - war, peace, civil rights- are not made on the basis of considered judgment by the citizens.Instead, citizens realize that their votes will not matter and they there-fore do not vote to affect policy. Voters view politics as a game orentertainment; it is only one of many ways to impress one's friends orassociates, and fulfills the same function for many voters that designerjeans do.     

Letter to the Editor: Respecting Multiple Epistemologies in Social Work

This article is an invited response to “Toward a Learning Environment That Supports Diversity and Difference: A Response to Dessel, Bolen, and Shep - ardson,” by David R. Hodge (Journal of Social Work Education, 47(2), pp. 235-251).     

Navigating the “Sea of Goodwill”: Lessons from Regional Veterans Collaboratives

ABSTRACT

Veterans and military families face a complex set of challenges transitioning to civilian life. Following in a tradition of community collaboration and collective impact, we believe that a coordinated community-based approach can help ease this transition. Our comparative case study suggests that veteran collaborative efforts should be based on best principles including a neutral and natural convening organization; the presence of credibility, respect, and trust; resources to administer and facilitate; and using data for planning and implementation. Looking forward, these collaboratives need to address issues of scale, formalizing and broadening their scope to identify and achieve and evaluate their impact.     

Different Ways to Get There: Evidence of a Variable Female Sexual Response Cycle

Research has suggested women’s sexual response cycle may vary more than previously thought. We asked 769 sexually active women between the ages of 18–70 to report on their sexual desire and arousal patterns during their last sexual experience. Using a latent class mixture model from retrospective sexual response data, we found six classes of desire and arousal patterns (Low, Middle Steady, High Fluctuation, Low Fluctuation, Upper Steady, High). We examined how these patterns were related to demographics, outcomes during the sexual experience, and outcomes for the global relationship. The Low sexual response class (8% of women) was significantly different from other classes in duration of the sexual experience, orgasms, and overall satisfaction with the sexual experience. Most sexual response patterns were associated with healthy relational and sexual outcomes. All classes except for the Low arousal and desire class showed associations with a neutral or positive sexual satisfaction evaluation. The non-problematic variation of women’s sexual experience is an important concept to consider as it impacts determinations of dysfunction and women’s self-evaluations. Not all women need to experience high levels of arousal throughout the sexual experience or to have desire at the outset in order to have positive sexual experiences and sexual outcomes.     

Longitudinal predictors of cigarette use among students from 24 Texas colleges

ABSTRACT

Objective: The purpose of this study is to examine differences between current and non-current cigarette users, focusing on sociodemographic factors, non-cigarette tobacco product use, parental and friend use, and alcohol and marijuana use; and to identify predictors of cigarette use sixmonths later. Participants: Participants included young adults (n = 4,296) from 24 Texas colleges, participating in a young adult cohort study, beginning in fall 2014. Methods: Mixed effects logistic regressions were conducted accounting for school-level variability. Results: Cigarette users were older, more likely to report use of non-cigarette tobacco products and peer use of cigarettes than non-current users. Wave 1 cigarette and non-cigarette tobacco product use, marijuana use and binge drinking, and peer use all uniquely predicted cigarette use at wave 2. Conclusions: Colleges need prevention programs targeting multiple tobacco products, because non-cigarette tobacco use and other risky behaviors appear to be independent risk factors for cigarette use in young adults.     

Intimate partner violence,health, sexuality,and academic performance among a national sample of undergraduates

ABSTRACT

Objective: To determine the association between intimate partner violence (IPV) and academic performance among heterosexual and sexual minority undergraduates, including whether health mediates this relationship. Participants: A national sample of undergraduate students aged 18–24 years old who completed the 2011–2014 National College Health Assessment IIb (N = 85,071). Methods: We used structural equation modeling to create a latent variable of IPV victimization (stalking, physical, sexual, and emotional violence) in order to test its relationship with health (physical and mental) and two indicators of academic performance (GPA and perceived academic difficulties), according to participants’ sexual identity (heterosexual, lesbian, gay, bisexual, and unsure). Results: Regardless of sexual identity, undergraduates who reported IPV were more likely to have lower GPA and increased academic difficulties. Health mediates this relationship, such that IPV reduces health, which negatively affects performance. Conclusions: IPV poses a serious threat to undergraduates’ health and educational success. Findings warrant universal prevention and intervention.     

Calculation of Scores for a Wilcoxon Generalization Applicable to Data Subject to Arbitrary Right Censorship

For data subject to right censoring it is suggested that the Wilcoxon ranking procedure can be generalized by scoring observations according to the expected values of order statistics from the uniform distribution subject to the same right censoring. This parallels the logrank scoring procedure in which scores correspond to the expected values of order statistics from the exponential distribution that have been subject to right censoring. A caveat is given that, in situations where the mechanism of censoring has been affected by treatment, the usual permutational analysis of ranking scores would be inappropriate. But a jackknife approach could be remedial.     

Bayesian Spatial Analysis for the Evaluation of Breast Cancer Detection Methods

This study investigated the impact of spatial location on the effectiveness of population‐based breast screening in reducing breast cancer mortality compared to other detection methods among Queensland women. The analysis was based on linked population‐based datasets from BreastScreen Queensland and the Queensland Cancer Registry for the period of 1997–2008 for women aged less than 90 years at diagnosis. A Bayesian hierarchical regression modelling approach was adopted and posterior estimation was performed using Markov Chain Monte Carlo techniques. This approach accommodated sparse data resulting from rare outcomes in small geographic areas, while allowing for spatial correlation and demographic influences to be included. A relative survival model was chosen to evaluate the relative excess risk for each breast cancer related factor. Several models were fitted to examine the influence of demographic information, cancer stage, geographic information and detection method on women's relative survival. Overall, the study demonstrated that including the detection method and geographic information when assessing the relative survival of breast cancer patients helped capture unexplained and spatial variability. The study also found evidence of better survival among women with breast cancer diagnosed in a screening program than those detected otherwise, as well as lower risk for those residing in a more urban or socio‐economically advantaged region, even after adjusting for tumour stage, environmental factors and demographics. However, no evidence of dependency between method of detection and geographic location was found. This project provides a sophisticated approach to examining the benefit of a screening program while considering the influence of geographic factors.