Infants Show Ratio‐dependent Number Discrimination Regardless of Set Size

Evidence for approximate number system (ANS) representations in infancy is robust but has typically only been found when infants are presented with arrays of four or more elements. In addition, several studies have found that infants fail to discriminate between small numbers when continuous variables such as surface area and contour length are controlled. These findings suggest that under some circumstances, infants fail to recruit either the ANS or object file representations for small sets. Here, we used a numerical change detection paradigm to assess 6‐month‐old infants' ability to represent small values. In Experiment 1, infants were tested with 1 versus 3, 1 versus 2, and 2 versus 3 dots. Infants successfully discriminated 1 versus 3 and 1 versus 2, but failed with 2 versus 3. In Experiment 2, we tested whether infants could compare small and large values with a 2 versus 4 condition. Across both experiments, infants' performance exhibited ratio dependence, the hallmark of the ANS. Our results indicate that infants can attend to the purely numerical attributes of small sets and that the numerical change detection paradigm accesses ANS representations in infancy regardless of set size.     

Distance matters: mobilities and the politics of distance

Distance constitutes one of the foundations of geographical discourse, and yet it is among the least discussed of these foundations. Rather than contemplating distance as an explanatory tool, the paper takes distance itself, as well as its development and implications, as requiring explanation in their own right. It looks at the role played by definitions and measurements of distance in the production of territory and private property in land; in the governing of moving bodies; and in the phenomenological and affective design of space. The paper’s main argument is that distance should be de-constructed and re-politicized by being brought back into the field of mobilities.     

Making a Mormon?: Peacemaking in U.S. Press Coverage of the Mormon Baptism for the Dead

In the Mormon doctrine of posthumous baptism, people can be invited into the Church of Jesus Christ of Latter-day Saints (LDS) community through baptism even after their death. When it was reported that the LDS had baptized Jewish Holocaust victims, this caused an uproar in the American Jewish community. The American Gathering of Jewish Holocaust Victims deemed the Mormon practice disrespectful and inappropriate. This study analyzes the news coverage of the negotiations between the group and the Mormon church. While such negotiations would typically be ripe for conflict-privileging coverage, news coverage of these negotiations actually emphasized peacemaking. Using the lens of narrative theory, this study found that, in reporting on negotiations between American Jews and Mormons, the press attempted to mend relations rather than emphasize conflict.     

Tobacco,Marijuana, and Alcohol Use in University Students: A Cluster Analysis

Abstract

Objective: Segmentation of populations may facilitate development of targeted substance abuse prevention programs. The authors aimed to partition a national sample of university students according to profiles based on substance use. Participants: The authors used 2008–2009 data from the National College Health Assessment from the American College Health Association. The sample consisted of 111,245 individuals from 158 institutions. Methods: The sample was partitioned using cluster analysis according to current substance use behaviors. The association of cluster membership with individual and institutional characteristics was examined. Results: Cluster analysis yielded 6 distinct clusters. Three individual factors—gender, year in school, and fraternity/sorority membership—were the most strongly associated with cluster membership. Conclusions: In a large sample of university students, the authors were able to identify 6 distinct patterns of substance abuse. It may be valuable to target specific populations of college-aged substance users based on individual factors. However, comprehensive intervention will require a multifaceted approach.     

Parents Differentiate Between Their Personal Values and Their Socialization Values: The Role of Adolescents' Values

This study focuses on the differentiation process, involving the emergence of a distinction between parents' own personal values and their socialization values (the values they want their children to adopt), and on the contribution of children's values to their parents' socialization values. Measures of personal and socialization values were administrated to 603 Israeli adolescents and their parents. As we hypothesized, parents differentiate between their personal values and their socialization values. Moreover, adolescents' values had a specific contribution to their parents' socialization values. These findings provide new support to the notion that the socialization process should be considered as the result of the interaction between parents and their adolescent children rather than as a unidirectional process affected by parents alone.     

The Prevalence of Pathological Gambling Among College Students: A Meta-analytic Synthesis, 2005–2013

The problem of gambling addiction can be especially noteworthy among college and university students, many of whom have the resources, proximity, free time, and desire to become involved in the myriad options of gambling now available. Although limited attention has been paid specifically to college student gambling in the body of literature, there have been two published meta-analyses estimating the prevalence of probable pathological gambling among college students. This present study aims to be the third, presenting an up-to-date proportion of those students exhibiting gambling pathology, and is the first to include international studies from outside the United States and Canada. The purpose of this study was to use the most up-to-date meta-analytical procedures to synthesize the rates of probable pathological gambling for college and university students worldwide. A thorough literature review and coding procedure resulted in 19 independent data estimates retrieved from 18 studies conducted between 2005 and 2013. To synthesize the studies, a random effects model for meta-analysis was applied. The estimated proportion of probable pathological gamblers among the over 13,000 college students surveyed was computed at 10.23 %, considerably higher than either of the two previously published meta-analyses, and more than double the rate reported in the first meta-analysis of this type published in 1999. Implications and recommendations for future practice in dealing with college students and gambling addiction are outlined and described for both administrators and mental health professionals.     

MONEY PUMPS IN THE MARKET

Agents who employ non‐rational choice procedures are often vulnerable to exploitation, in the sense that a profit‐seeking trader can offer them a harmful transaction which they will nevertheless accept. We examine the vulnerability of a procedure for deciding whether to buy a lottery: observe another agent who already bought it and buy the lottery if that agent's experience was positive. We show that the exploitation of such agents can be embedded in an inter‐temporal market mechanism, in the form of speculative trade in an asset of no intrinsic value. (JEL: D84)     

Social Fathering in Low‐Income,African American Families with Preschool Children

Although research increasingly focuses on nonresident biological fathers, little attention has been given to the role of other men in children's lives. The authors examine the factors associated with social father presence and their influence on preschoolers' development. Findings indicate that the majority of children have a social father and that mother, child, and nonresident biological father characteristics are all related to social father presence. These associations differ depending on whether the social father is the mother's romantic partner or a male relative. The social father's influence on children's development also depends on his relationship to the child. Male relative social fathers are associated with higher levels of children's school readiness, whereas mothers' romantic partner social fathers are associated with lower levels of emotional maturity.