Optimization of Performance Validity Test (PVT) Cutoffs across Healthy and Non-Referred Clinical Research Samples

Performance validity tests (PVTs) effectively detect suboptimal test performance, but cutoff scores for a given test may differ between populations. This research examines how optimal PVT cutoffs differ in a collegiate research population when mental health and clinical conditions are considered. Healthy controls (n = 328) and non-referred students with self-reported clinical conditions (n = 42) were assigned to perform their best while others simulated ADHD symptoms (n = 123). PVT indices were derived from a stand-alone measure (Victoria Symptom Validity Test) and embedded measures (California Verbal Learning Test – Second Edition; Wechsler Adult Intelligence Scale – Fourth Edition, Digit Span). PVT cutoffs with the highest sensitivity, while maintaining adequate specificity, were identified when the control groups were considered together, and when students with reported clinical conditions were considered separately. Mean differences in PVT performances were found between the simulation group and control groups, but not between clinical and nonclinical controls. The optimized cutoffs differed for five of eight PVT indices when all controls were considered together versus the clinical control group, only. When discordance was observed, cutoffs tended to be lower (less stringent) for the non-referred clinical control group. Together, these optimized cutoffs tended to be more stringent than previously established cutoffs. This study suggests that PVT cutoffs may be responsibly altered in a research context in the presence of a clinical condition. Future research should investigate if PVT classification accuracies can be improved in clinical and forensic samples while considering clinical conditions.     

Real Solutions for Fake News? Measuring the Effectiveness of General Warnings and Fact-Check Tags in Reducing Belief in False Stories on Social Media

Political Behavior - Social media has increasingly enabled “fake news” to circulate widely, most notably during the 2016 U.S. presidential campaign. These intentionally false...     

Curriculum Reform in The Common Core Era: Evaluating Elementary Math Textbooks Across Six U.S. States

Can a school or district improve student achievement simply by switching to a higher-quality textbook or curriculum? We conducted the first multi-textbook, multi-state effort to estimate textbook efficacy following widespread adoption of the Common Core State Standards (CCSS) and associated changes in the textbook market. Pooling textbook adoption and student test score data across six geographically and demographically diverse U.S. states, we found little evidence of differences in average achievement gains for schools using different math textbooks. We found some evidence of greater variation in achievement gains among schools using pre-CCSS editions, which may have been more varied in their content than post-CCSS editions because they were written for a broader set of standards. We also found greater variation among schools that had more exposure to a given text. However, these differences were small. Despite considerable interest and attention to textbooks as a low-cost, “silver bullet” intervention for improving student outcomes, we conclude that the adoption of a new textbook or set of curriculum materials, on its own, is unlikely to achieve this goal.     

Monarchical Manoeuvres: Gender,Nation and the Boundary Problem in Post-War Swedish Constitutional Development

In the years following the end of the cold war in 1989, Western feminist scholars and activists expressed disappointment in the failure of the newly democratic Eastern and Central European countries to sustain mainstream women's rights movements and achieve a marked increase in women's participation within the new political parties and political life in general. The authors, historians of Hungarian women's movements with a broad East-West perspective, offer a novel explanation for this phenomenon. Following an outline of the main stages of Hungarian women's movements and women's political participation, they focus on two instances in twentieth-century Hungarian history that resulted in a rapid transition from anti-democratic regimes to liberal, parliamentary systems: the 1918 bourgeois democratic revolution and the 1990 re-introduction of free parliamentary elections. Examining these two turning points in recent Hungarian history, separated by 70 years, as case studies of women's activism, the authors propose a new, critical re-evaluation of the notion of separate spheres, offering a timely if co-incidental comment on the recent debate in the Journal of Women's History.² Research for this article had been completed by the time of the publication of the Spring 2003 issue of the Journal of Women's History, 15 (1), devoted to "Rethinking Public and Private".     

Fimag: The United Kingdom Disaster Victim/Forensic Identification Imaging System

Abstract:  Imaging is an integral diagnostic tool in mass fatality investigations undertaken traditionally by plain X-rays, fluoroscopy, and dental radiography. However, little attention has been given to appropriate image reporting, secure data transfer and storage particularly in relation to the need to meet stringent judicial requirements. Notwithstanding these limitations, it is the risk associated with the safe handling and investigation of contaminated fatalities which is providing new challenges for mass fatality radiological imaging. Mobile multi-slice computed tomography is an alternative to these traditional modalities as it provides a greater diagnostic yield and an opportunity to address the requirements of the criminal justice system. We present a new national disaster victim/forensic identification imaging system—Fimag—which is applicable for both contaminated and non-contaminated mass fatality imaging and addresses the issues of judicial reporting. We suggest this system opens a new era in radiological diagnostics for mass fatalities.     

Fake Claims of Fake News: Political Misinformation,Warnings, and the Tainted Truth Effect

Political Behavior - Fact-checking and warnings of misinformation are increasingly salient and prevalent components of modern news media and political communications. While many warnings about...     

A rural economic development plan to help the USA win its war on cocaine

Since the 1980s, the USA has fought cocaine in the Andes with carrots and sticks: interdiction and crop eradication wield the sticks, while Alternative Development (AD), which offers economic assistance to farmers who voluntarily abandon illicit cultivation, provides the carrots. Yet cocaine continues to permeate US streets, and rural Andean communities remain isolated from the legitimate economy. Many critics blame US belligerence for compounding the Andean drug war. The underlying problem with the existing strategy, however, might not be the aggressiveness of its military sticks, but the flimsiness of its development carrots. The inability of AD to persuade farmers to abandon coca cultivation may be causing US policy makers to over-apply military solutions – often inflaming rural communities and exacerbating regional instability in so doing. Few legal crops can match the earning power of coca. The article therefore suggests that the US carrot could be made more attractive by adopting a Venture Development model which helps rural farmers to process their legal produce into high-quality finished goods that command premium prices. Such a strategy could conceivably choke the cocaine engine by applying market-based forces to address market-based realities.     

Do two-year colleges increase overall educational attainment? Evidence from the states

Are two- or four-year colleges more efficient at increasing the educational attainment of young adults? I use state variation in two- and four-year college systems to address this question at the state level. I find that the composition and cost of higher education in a state affect the enrollment decisions of individuals in that state. Further, attending a two-year rather than a four-year college may lower the educational attainment of some students, but more students will benefit from the community college alternative. It also most likely costs the state more to educate a student in a four-year rather than a two-year college. As a result, community colleges provide a potentially efficient way to increase access to higher education as well as increase the overall educational attainment of a state's residents.     

Two Novel Methods for Enhancing Postmortem Fingerprint Recovery from Mummified Remains

Postmortem fingerprint collection is a routine part of many forensic death investigations. Although the production of postmortem prints is usually straight forward, several obstacles and scenarios can make the collection difficult. A common challenge occurs when finger pads are mummified. Several current techniques allow for softening and rehydration of mummified finger pads; however, despite the employment of such techniques, the production of adequate postmortem fingerprints can remain elusive. The authors present two techniques that can improve the chances of obtaining suitable fingerprints from mummified remains. The “baby powder method” involves applying a cornstarch‐based powder, such as baby powder, onto the darkened and mummified finger pads, to allow better visualization of the fingerprint detail. The “transillumination method” involves carefully dissecting away the tissues underlying the finger pad, followed by placement of a bright light source underneath the finger pad, such that the finger ridge pattern is illuminated.