Procedures for analyzing block designs with censored data

Nonparsmetric procedures for analyzing block designs with right censored data are introduced and compared, Procedures are given using Gehan and logrank scores and the ranks of these scores.The large sample approximations of the procedures are presented and a conparison of the significance level and power is made via a simulation study based on different experiment sizes and block effects.     

A Pilot Investigation of Media Multitasking and Trauma Symptoms Among Adolescents

Effective prevention and intervention for trauma symptoms are still needed, particularly for adolescents, in whom high-risk behavior is common. This pilot study examines how media multitasking may be related to trauma symptoms in a sample of adolescent college students (N = 55). Results indicate that higher media multitasking is uniquely and independently associated with higher trauma symptoms. These results hold even after controlling for alcohol intoxication, which is commonly associated with trauma symptoms. Adolescents may be more forthcoming in revealing information about media multitasking than other behaviors commonly associated with trauma symptoms, such as alcohol and drug use. The present study provides the first evidence that media multitasking could be an additional tool for clinicians treating adolescents with trauma symptoms.     

Work adjustment after combat deployment: reservist repatriation

A longitudinal, qualitative study was conducted with United States (US) Army reservists to explore the concerns and obstacles in the process of returning to the civilian workforce following a combat deployment. A person–environment fit perspective is used to explain the adjustment process and obstacles encountered by the returning reservists. Seven waves of interviews over a 12-month period were conducted. These interviews resulted in the development of a process model of reintegration to work. This process model consists of four phases: Return Home, Return to Work, Activation, and Settling In. We discuss the factors and events that characterize each phase and provide some practical recommendations for employers of military reservists.     

O Other,Where Art Thou? Support for Multiparty Politics in the United States*

Objective. We test hypotheses about support for multiparty politics in the United States. We expect that individual‐level attitudes and state‐level partisan context determine who supports having more parties. Methods. Survey data are used to model attitudes about having additional parties to challenge Democrats and Republicans. Results. Self‐identified partisans are opposed to additional parties, but independents who “lean” toward a major party are most supportive. Independents who say they are closer to Democrats, as well as independents who say they are closer to Republicans, tend to support having new parties. The latter effect is contingent on a state's partisan context. Independents closer to Republicans are most receptive to additional parties in states where fewer conservative representatives are elected. Conclusions. Support for multiparty‐ism among “leaning” independents challenges our understanding of how they may be similar to partisan identifiers, and illustrates that a base for new parties may exist in the “mainstream” public if electoral rules were changed.     

Developing Nations,the Digital Divide and Research Databases

Abstract

The digital divide affects many nations of the developing world. The term encompasses inadequate funding, a lack of necessary computer and Internet skills, and a lack of English-language proficiency that hinder expansion and use of digital information resources. Visionary individuals and organizations can assist these countries with their information needs. Aggregated full-text databases serve as a prominent tool in closing the digital divide because they provide important research resources. Participating organizations must demonstrate the value of these resources to users and supply essential training to ensure success with electronic resource initiatives.     

“Minnesota slots”: An observational study of pull tab gambling

A study of pull tab gambling in Minnesota was undertaken to describe the state's most popular form of gambling. The study also focused on the detection of any abuses or addictive problems that might be associated with it. Pull tab gambling is similar to slot machine gambling. The game, fundamentals of play, and some of the behaviors of pull tab gamblers are described. Various playing patterns and strategies, pull tab etiquette, the numbers and types of players, amounts of money bet, player's wins and losses, house profits, gambling abuses, behaviors which may indicate problem gambling, and dealer/player relationships are discussed. The study concludes with suggestions to help minimize some of the actual and potential problems and abuses that accompany pull tab gambling.This study was supported by funding from the Minnesota Department of Human Services, Mental Health Division. The information presented here is based on a report (Schaefer & Aasved, 1990) submitted to that agency.The authors would like to thank Drs. Sue Fisher and Mark Griffiths for their helpful suggestions and comments on an earlier draft of this paper.     

Patterns of union membership and relative wages

This paper, using the Panel Study of Income Dynamics, examines the effects of union membership on the wages of white males. The empirical relationship between current wage and union status is estimated controlling for union status in years before and after the current year. The resulting status profiles are four years long in contrast to one or two years used previously. Results indicate that wage changes experienced when workers join or leave unions vary significantly and systematically across these profiles. For example, a status change that appears to be long-term is associated with larger absolute wage changes than short-term changes in status. The authors thank Jeff Moore for comments and suggestions on an early draft of this paper and express special appreciation to John Raisian for his painstaking and valuable review of a recent draft. We are, of course, responsible for remaining errors.     

Risk Perceptions and Trust Following the 2010 and 2011 Icelandic Volcanic Ash Crises

Eruptions at the Icelandic volcanoes of Eyjafjallajökull (2010) and Grimsvötn (2011) produced plumes of ash posing hazards to air traffic over northern Europe. In imposing restrictions on air traffic, regulators needed to balance the dangers of accidents or aircraft damage against the cost and inconvenience to travelers and industry. Two surveys examined how members of the public viewed the necessity of the imposed restrictions and their trust in different agencies as estimators of the level of risk. Study 1 was conducted with 213 British citizens (112 males, 101 females), who completed questionnaires while waiting for flights at London City Airport during May 2012. Study 2 involved an online survey of 301 Icelandic citizens (172 males, 127 females, 2 undeclared gender) during April 2012. In both samples, there was general support for the air traffic restrictions, especially among those who gave higher estimates of the likelihood of an air accident or mishap having otherwise happened. However, in both countries, the (minority of) respondents who had personally experienced travel disruption were less convinced that these restrictions were all necessary. Scientists, the International Civil Aviation Organization, and (in Iceland) the Icelandic Department of Civil Protection were all highly trusted, and seen as erring on the side of caution in their risk estimates. Airlines were seen as more likely to underestimate any risk. We conclude that perceptions of the balance between risk and caution in judgments under uncertainty are influenced by one's own motives and those attributed to others.