Analyzing attrition in a community-based literacy program

Attrition presents a challenge for research, especially when it affects groups differentially. The present study used the strategy proposed by Cook and Campbell (1979) to investigate attrition in a community-based literacy program. The relationship of attrition to person-centered and program-centered variables, and the interactions between person-centered and program-centered variables were examined in 287 Head Start families. Thus, data from this program were used to illustrate methods for examining attrition and determine its effects. This examination revealed differences among the intervention groups in the pattern of attrition. There were interactions between intervention program-centered characteristics and person-centered characteristics of the participants that could affect the validity of the study and limit the generalizability of the results. Suggestions for dealing with these problems and preventing attrition are discussed.     

Power laws and fragility in flow networks

What makes economic and ecological networks so unlike other highly skewed networks in their tendency toward turbulence and collapse? Here, we explore the consequences of a defining feature of these networks: their nodes are tied together by flow. We show that flow networks tend to the power law degree distribution (PLDD) due to a self-reinforcing process involving position within the global network structure, and thus present the first random graph model for PLDDs that does not depend on a rich-get-richer function of nodal degree. We also show that in contrast to non-flow networks, PLDD flow networks are dramatically more vulnerable to catastrophic failure than non-PLDD flow networks, a finding with potential explanatory power in our age of resource- and financial-interdependence and turbulence.     

Compassionate Values and Presidential Politics: Mortality Salience, Compassionate Values, and Support for Barack Obama and John McCain in the 2008 Presidential Election

In line with terror management theory, this research demonstrates that mortality salience motivated increased support for John McCain in the absence of reminders of compassionate values. However, polls had indicated that Barack Obama was generally perceived as the more compassionate of the two candidates. Thus, when compassionate values were made salient, death reminders motivated participants to uphold these values by significantly increasing their support for the more compassionate Barack Obama instead. The implications of these findings for terror management theory, the 2008 presidential election, and political endorsements are discussed .     

Midlife Career Transitions of Men Who Are Scientists and Engineers: A Narrative Study

This article summarizes the results of a qualitative study of career transition experiences of middle‐aged male scientists and engineers in the current socioeconomic environment in the United States. The study addresses the effects of the transitions from psychosocial perspectives. The authors selected participants from research organizations, industry, and academic fields. The authors used a narrative approach to collect data and analyzed the data using a grounded theory approach. The results suggest that the major factors that describe the dynamics in the career transition experiences are personhood, relationships, lifestyle, and workplace environment. The findings and their implications in developing coping skills and counseling strategies are discussed.     

Arguing for Democracy: A Multimodal Approach to Argumentative Writing Instruction in the Social Studies Classroom

Democratic societies require a citizenry skilled in argumentation. At present, the written argument maintains primacy among communicative modes. Because of its cognitive demands, written argumentation is often difficult to teach. A multimodal approach to writing instruction carries the potential to assist struggling learners. This article outlines an instructional approach in which students engage with a visual argument to better understand the essentials of argumentation, as specified by the Toulmin Method. It asserts that once students have deepened their understanding of argument via a visual mode, they will then be able to apply this understanding to the written mode of argumentation. It concludes with a brief discussion of how students may apply their understanding of multimodal argumentation toward civic engagement.     

Barriers to accessing HIV and sexual health services among gay men in Tasmania,Australia

We examined barriers to accessing HIV and sexual health services among gay and bisexual men (GBM) in Tasmania, Australia, using in-depth interviews. Most participants were satisfied with the care they had received at public sexual health services. Barriers included the limited number of services, concerns about anonymity and privacy in small communities, difficulties accessing services via a general practitioner, and perceived stigma and discrimination. Improving the accessibility and availability of HIV and sexual health services in Tasmania is crucial to promote the engagement of GBM, which could be achieved via combined efforts of government services and community organizations.     

Homelessness, Mental Illness and Citizenship

Assertive mental health outreach to homeless persons, which operates under the premise that mental illness must be understood and treated within the individual's social and economic environment, points towards the goals of community membership and 'citizenship'—a connection to the rights, responsibilities, roles, and resources that society offers through public and social institutions and informal 'associational life'—for homeless persons. We argue that the concept of citizenship is a useful framework for approaching these goals. We review the principles of assertive mental health outreach and relevant aspects of contemporary citizenship theory; present a case example of outreach leading to a 'citizenship project'; and discuss the potential benefits and pitfalls of a citizenship framework, including strategies and recommendations for program administrators, researchers and policy makers.     

The Psychophysics of Terror Attack Casualty Counts

In communicating the risk that terror attacks pose to the public, government agencies and other organizations must understand which characteristics of an attack contribute to the public's perception of its severity. An attack's casualty count is one of the most commonly used metrics of a terror attack's severity, yet it is unclear whether the public responds to information about casualty count when forming affective and cognitive reactions to terror attacks. This study sought to characterize the “psychophysical function” relating terror attack casualty counts to the severity of the affective and cognitive reactions they elicit. We recruited n = 684 Mechanical Turk participants to read a realistic vignette depicting either a biological or radiological terror attack, whose death toll ranged from 20 to 50,000, and rated their levels of fear and anger along with the attack's severity. Even when controlling for the perceived plausibility of the scenarios, participants’ severity ratings of each attack were logarithmic with respect to casualty count, while ratings of fear and anger did not significantly depend on casualty count. These results were consistent across attack weapon (biological vs. radiological) and time horizon of the casualties (same-day or anticipated to occur over several years). These results complement past work on life loss valuation and highlight a potential bifurcation between the public's affective and cognitive evaluations of terror attacks.     

The Prioritization of Island Nations as Refuges from Extreme Pandemics

In this conceptual article with illustrative data, we suggest that it is useful to rank island nations as potential refuges for ensuring long-term human survival in the face of catastrophic pandemics (or other relevant existential threats). Prioritization could identify the several island nations that are most suitable for targeting social and political preparations and further investment in resiliency. We outline a prioritization methodology and as an initial demonstration, we then provide example rankings by considering 20 sovereign island states (all with populations greater than 250,000 and no land borders). Results describe each nation in nine resilience-relevant domains covering location, population, resources, and society according to published data. The results indicate that the most suitable island nations for refuge status are Australia, followed closely by New Zealand, and then Iceland, with other nations all well behind (including the relatively high-income ones of Malta and Japan). Nevertheless, some key contextual factors remain relatively unexplored. These include the capacity of the jurisdiction to rapidly close its borders when the emerging threat was first detected elsewhere, and whether or not large subnational islands should be the preferred focus for refuge design (e.g., the Australian state of Tasmania, the island of Hokkaido in Japan, or the South Island of New Zealand). Overall, this work provides conceptual thinking with some initial example analysis. Further research could refine the selection of metrics, how best to weight the relevant domains, and how the populations of prioritized island nations view their nation's selection as a potential refuge for human survival.