Public relations as “practice:” applying the theory of Alasdair MacIntyre

Public relation’s search for a unifying theory may be fulfilled through application of Alasdair MacIntyre’s concept of a “practice,” a very specific and value-laden concept. This article explores what it would mean to be a public relations practice in MacIntyre’s concept of the term and argues that such an approach to public relations is of value for the field.     

Passion for poker and the relationship with gambling problems: a cross-sectional study

Previous research has shown that poker players spend significant time, large amounts of money and have a high prevalence of gambling problems. While some studies have examined the association between gambling behaviours and passion, none have explored this association specifically among poker players. This study aims to examine the relationships between two types of passion (i.e. harmonious and obsessive) and severity of gambling problems among poker players. A sample of 159 poker players was recruited from across Quebec, Canada. The outcome variable of interest was participants’ scores on the Canadian Pathological Gambling Index and the predictive variable was the Gambling Passion Scale. Multiple logistic regression analyses were conducted to identify independent risk factors of at-risk poker players. Severity of gambling problems is positively associated with obsessive passion (p < .05). However, harmonious passion is not associated with gambling problems. These results align with previous findings obtained for other gambling activities. Thus, passion could be considered a useful tool when approaching players to talk about risk-taking.     

Operationalism: A Philosophy for Social Work Education

This paper presents and utilizes an operational philosophy of social work education in an attempt to identify effective and useful educational experiences. The effects of educational philosophy on curriculum content and emphasis, selection of learning experiences, and the determination of learning outcomes is discussed. The value and utility of an explicit philosophy in educational decision making is also stressed.     

A natural lead-in approach to response-adaptive allocation for continuous outcomes

Response-adaptive (RA) allocation designs can skew the allocation of incoming subjects toward the better performing treatment group based on the previously accrued responses. While unstable estimators and increased variability can adversely affect adaptation in early trial stages, Bayesian methods can be implemented with decreasingly informative priors (DIP) to overcome these difficulties. DIPs have been previously used for binary outcomes to constrain adaptation early in the trial, yet gradually increase adaptation as subjects accrue. We extend the DIP approach to RA designs for continuous outcomes, primarily in the normal conjugate family by functionalizing the prior effective sample size to equal the unobserved sample size. We compare this effective sample size DIP approach to other DIP formulations. Further, we considered various allocation equations and assessed their behavior utilizing DIPs. Simulated clinical trials comparing the behavior of these approaches with traditional Frequentist and Bayesian RA as well as balanced designs show that the natural lead-in approaches maintain improved treatment with lower variability and greater power.     

Exploring the dynamics of racial food security gaps in the United States

Review of Economics of the Household - Household-level food insecurity is one of the largest public health concerns facing millions of people in the United States today. Although recent work has...     

Consequences of Eye Color,Positioning, and Head Movement for Eye‐Tracking Data Quality in Infant Research

Eye tracking has become a valuable tool for investigating infant looking behavior over the last decades. However, where eye‐tracking methodology and achieving high data quality have received a much attention for adult participants, it is unclear how these results generalize to infant research. This is particularly important as infants behave different from adults in front of the eye tracker. In this study, we investigated whether eye physiology, positioning, and infant behavior affect measures of eye‐tracking data quality: accuracy, precision, and data loss. We report that accuracy and precision are lower, and more data loss occurs for infants with bluish eye color compared to infants with brownish eye color. Moreover, accuracy was lower for infants positioned in a high chair or in the parents' lap compared to infants positioned in a baby seat. Finally, precision decreased and data loss increased as a function of time. We highlight the importance of data quality when comparing multiple groups, as differences in data quality can affect eye‐tracking measures. In addition, we investigate how two different measures to quantify infant movement influence eye‐tracker data quality. These findings might help researchers with data collection and help manufacturers develop better eye‐tracking systems for infants.     

The plan of enrichment designs for dealing with high placebo response

To deal with high placebo response in clinical trials for psychiatric and other diseases, different enrichment designs, such as the sequential parallel design, two‐way enriched design, and sequential enriched design, have been proposed and implemented recently. Depending on the historical trial information and the trial sponsors' resources, detailed design elements are needed for determining which design to adopt. To assist in making more suitable decisions, we perform evaluations for selecting required design elements in terms of power optimization and sample size planning. We also discuss the implementation of the interim analysis related to its applicability.