Reducing Youth Access to Alcohol: Findings from a Community-Based Randomized Trial

Underage drinking continues to be an important public health problem and a challenge to the substance abuse prevention field. Community-based interventions designed to more rigorously control underage access to alcohol through retailer education and greater enforcement of underage drinking laws have been advocated as potentially effective strategies to help address this problem, but studies designed to evaluate such interventions are sparse. To address this issue we conducted a randomized trial involving 36 communities to test the combined effectiveness of five interrelated intervention components designed to reduce underage access to alcohol. The intervention was found to be effective in reducing the likelihood that retail clerks would sell alcohol to underage-looking buyers, but did not reduce underage drinking or the perceived availability of alcohol among high school students. Post hoc analyses, however, revealed significant associations between the level of underage drinking law enforcement in the intervention communities and reductions in both 30-day use of alcohol and binge drinking. The findings highlight the difficulty in reducing youth drinking even when efforts to curtail retail access are successful. Study findings also suggest that high intensity implementation of underage drinking law enforcement can reduce underage drinking. Any such effects of enhanced enforcement on underage drinking appear to be more directly attributable to an increase in perceived likelihood of enforcement and the resultant perceived inconveniences and/or sanctions to potential drinkers, than to a reduction in access to alcohol per se.     

THE EFFECT OF PRINT ACCESS ON READING FREQUENCY

Studies on reading motivation have found that access to reading materials has an important influence on the amount students choose to read. There are few studies, however, that have examined print access in a comprehensive way to include home, school, and community resources. In this study, surveys and reading tests were administered to a class of eleventh-grade students (N = 24). Consistent with previous research, convenient access to reading material, regardless of a student's reading ability, was associated with more frequent reading. In addition, more voluntary or "free" reading was associated with higher levels of reading proficiency. Implications for providing students with easier access to reading materials are discussed.     

Mental chronometry and individual differences: Modeling reliabilities and correlations of reaction time means and effect sizes

We used a general stage-based model of reaction time (RT) to investigate the psychometric properties of mean RTs and experimental effect sizes (i.e., differences in mean RTs). Using the model, formulas were derived for the reliabilities of mean RTs and RT difference scores, and these formulas provide guidance about the number of trials per participant needed to obtain reliable estimates of these measures. In addition, formulas were derived for various different types of correlations computed in RT research (e.g., correlations between a mean RT and an external non-RT measure, between two mean RTs, between a mean RT and an RT effect size). The analysis revealed that observed RT-based correlations depend on many parameters of the underlying processes contributing to RT. We conclude that these correlations often fail to support the inferences drawn from them and that their proper interpretation is far more complex than is generally acknowledged.     

Engaging the Faith Community for Public Health Advocacy: An Agenda for the Surgeon General

This article proposes an agenda for the Surgeon General of the United States that is consonant with the traditional public health approach of “upstream” and “midstream” intervention addressing social and institutional determinants of health. Accordingly, this features a prominent role for expanded partnerships between the faith-based and public health sectors. Such an agenda would revise the current status quo for the Surgeon General, whose celebrated bully pulpit is currently focused more on encouraging “downstream” compliance with federal guidelines related to lifestyle behavior modification. A new faith-based agenda, by contrast, could more effectively advocate for core features of the traditional public health ethic, including primary prevention, the multiple determinants of population health, communitarianism and social justice, and a global perspective, supported by the historic prophetic role of the faith traditions.     

Mizuko kuyō in the abortion cultural wars: The rhetorical appropriation of Japanese Buddhism by non-Buddhist Americans

Mizuko kuyō, the popular Japanese Buddhist memorial service for aborted fetuses, has been increasingly appropriated by both sides of the contentious American abortion debate. In the wake of exposure to the idea of mizuko kuyō, both pro-life and pro-choice Buddhist appropriators resort to discussions of the ritual because they feel it helps them strengthen the weaknesses of their own sides and undermine the positions of their opponents. Prolife Americans use mizuko kuyō to prove that they care about women, not just fetuses, and that their convictions do not arise simply out of private religious feelings but objective psychological and medical facts. Pro-choice Americans, on the other hand, use mizuko kuyō to demonstrate that they care about families and children, not just women, and that they are sensitive not only to the secular but also the religious aspects of life and abortion. In the process, pro-life Christians, who seem to be primarily motivated by their exclusivist and authoritarian Biblical convictions, turn for support to a non-theistic religion they otherwise oppose; pro-choice feminists, who seem to have chiefly secular reasons for supporting abortion rights, turn for support to a supernatural entity and his retinue of angry fetal ghosts     

Simon congruency effects based on stimulus and response numerosity

Three choice reaction time experiments documented a Simon-type congruence effect involving the numbers of stimuli and responses. In Experiment 1 the stimulus consisted of one or two high- or low-pitch tones, and participants were required to respond with one or two taps of a response key depending on stimulus pitch. Responses were faster when the number of tones matched the required number of response taps than when these numbers mismatched. Experiment 2 showed that a weaker version of this effect can also be obtained using visual stimuli, and Experiment 3 showed that the analogous effect can even be obtained, albeit very weakly, with bimodal stimuli. There was also evidence that the number of stimuli affected the rate of emitting the two-tap response. These results indicate that stimulus numerosity is processed automatically to the level at which it can affect the selection and possibly the execution of a varying number of responses.     

Response force in RT tasks: Isolating effects of stimulus probability and response probability

Mattes, UIrich, and Miller (1997) found that as response probability decreases in a simple reaction time (RT) task, participants produce more forceful responses as well as longer RTs, suggesting a direct influence of preparatory processes on the motor system. In this previous study, however, response probability was confounded with stimulus probability, leaving open the possibility that response force was sensitive to stimulus- rather than response-related preparation. The present study was conducted to unravel the effects of stimulus and response probability. Experiment 1 manipulated stimulus probability and revealed that responses to a more probable stimulus are less forceful than responses to a less probable stimulus even when both stimuli require the same response. Experiment 2 demonstrated that this stimulus probability effect does not depend on the overall level of response probability. Experiment 3 showed an analogous effect for response probability when stimulus probability is kept constant. The complete pattern of results suggests that both stimulus probability and response probability affect the forcefulness of a response. It is argued that response probability exerts adirect influence on the motor system, whereas stimulus probability influences the motor system indirectly via premotoric adjustments.     

Social learning in captive African elephants (Loxodonta africana africana)

Social learning is a more efficient method of information acquisition and application than trial and error learning and is prevalent across a variety of animal taxa. Social learning is assumed to be important for elephants, but evidence in support of that claim is mostly anecdotal. Using a herd of six adult female African bush elephants (Loxodonta africana africana) at the San Diego Zoo’s Safari Park, we evaluated whether viewing a conspecific’s interactions facilitated learning of a novel task. The tasks used feeding apparatus that could be solved in one of two distinct ways. Contrary to our hypothesis, the method the demonstrating animal used did not predict the method used by the observer. However, we did find evidence of social learning: After watching the model, subjects spent a greater percentage of their time interacting with the apparatus than they did in unmodeled trials. These results suggest that the demonstrations of a model may increase the motivation of elephants to explore novel foraging tasks.     

On Not Giving Up the World – Davidson and the Grounds of Belief

Abstract

What is the relation between our beliefs, or thoughts in general, and the perceptual experience of the world that gives rise to those beliefs? Donald Davidson is usually taken to have a well‐known answer to this question that runs as follows: while our beliefs are, at least in part, caused by our experience, such experience does not thereby count as providing a rational ground for those beliefs; our beliefs are thus evidentially grounded in other beliefs, but not in the experience that gives rise to them. John McDowell, among others, has challenged this Davidsonian picture on the grounds that it actually severs the connection between beliefs and their proper evidential grounds. Against such a view, this paper argues the Davidsonian position grounds belief in the specificity of our own locatedness in the world, and in the more general and prior embeddedness of belief in the world that is a part of the very concept of belief.