About
29
Publications
83,479
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
9,380
Citations
Introduction
Current institution
Publications
Publications (29)
The United Nations described the Syrian conflict as the worst man-made disaster since World War II. We adopted a global perspective in examining the impact of the Syrian conflict on Syrians’ physical, mental, and social well-being using the Gallup World Poll. Face-to-face interview data of 11,452 Syrian participants from 2008 to 2015 show that Syri...
To what extent are research results influenced by subjective decisions that scientists make as they design studies? Fifteen research teams independently designed studies to answer five original research questions related to moral judgments, negotiations, and implicit cognition. Participants from two separate large samples (total N > 15,000) were th...
To what extent are research results influenced by subjective decisions that scientists make as they design studies? Fifteen research teams independently designed studies to answer five original research questions related to moral judgments, negotiations, and implicit cognition. Participants from 2 separate large samples (total N > 15,000) were then...
Background:
Although the World Health Organization (WHO) has defined health as a state of physical, mental and social well-being, public health strategies have primarily focused on one domain of well-being. We sought to systematically and simultaneously identify and validate associations of behavioural patterns, psychosocial factors, mental and ph...
Individual-level research has demonstrated the benefits associated with sense of purpose across multiple domains of life. The current study assessed the average level of purpose among citizens in each US state and the District of Columbia using data from the Gallup-Sharecare Well-being Index, a dataset consisting of a representative sample of 177,1...
Background:
Although the association of moderate alcohol consumption with specific disorders, such as cardiovascular disease and cancers, has been well documented, the evidence of the broader impact of alcohol consumption on health-related quality of life is less clear. Our objective was to examine the association of drinking patterns with changes...
Research suggests that individuals who report a greater sense of purpose in life tend to fare better economically, which may be expected to extend to the societal-level, in terms of higher GDP. However, previous work has demonstrated a negative association between citizens’ reports of purpose and GDP. The current study reconciles these differences...
Objective:
To assess the health impact of augmented reality games by examining the association between Pokémon Go and physical activity among university students.
Materials and methods:
This pilot study included 65 medical students who were iPhone (Apple, Inc., Cupertino, CA) users with the built-in accelerometer and Health app. Main outcome mea...
Twenty-nine teams involving 61 analysts used the same data set to address the same research question: whether soccer referees are more likely to give red cards to dark-skin-toned players than to light-skin-toned players. Analytic approaches varied widely across the teams, and the estimated effect sizes ranged from 0.89 to 2.93 (Mdn = 1.31) in odds-...
The widening income gap between the rich and the poor has important social implications. Governmental-level income redistribution through tax and welfare policies presents an opportunity to reduce income inequality and its negative consequences. The current longitudinal studies examined whether within-region changes in income redistribution over ti...
Twenty-nine teams involving 61 analysts used the same dataset to address the same research question: whether soccer referees are more likely to give red cards to dark skin toned players than light skin toned players. Analytic approaches varied widely across teams, and estimated effect sizes ranged from 0.89 to 2.93 in odds ratio units, with a media...
Twenty-nine teams involving 61 analysts used the same dataset to address the same research question: whether soccer referees are more likely to give red cards to dark skin toned players than light skin toned players. Analytic approaches varied widely across teams, and estimated effect sizes ranged from 0.89 to 2.93 in odds ratio units, with a media...
We present the data from a crowdsourced project seeking to replicate findings in independent laboratories before (rather than after) they are published. In this Pre-Publication Independent Replication (PPIR) initiative, 25 research groups attempted to replicate 10 moral judgment effects from a single laboratory’s research pipeline of unpublished fi...
There is evidence that inducing feelings of disgust increases the severity of moral judgments, but the size of this association has been questioned by a recent meta-analysis. Based on prior research and theory, we tested whether the effects of disgust on moral judgments might be moderated by sensitivity to bodily states (Studies 1 and 2) and the ac...
This crowdsourced project introduces a collaborative approach to improving the reproducibility of scientific research, in which findings are replicated in qualified independent laboratories before (rather than after) they are published. Our goal is to establish a non-adversarial replication process with highly informative final results. To illustra...
Gilbert et al. conclude that evidence from the Open Science Collaboration’s Reproducibility Project: Psychology indicates high reproducibility, given the study methodology. Their very optimistic assessment is limited by statistical misconceptions and by causal inferences from selectively interpreted, correlational data. Using the Reproducibility Pr...
Prior studies on the inequality–happiness link have yielded mixed results and tend to focus on mechanisms that explain the negative effects of inequality. The current study investigated the inequality–happiness link in China and examined hope as a mechanism that explains positive effects of income inequality. Using data from a large sample of 30,25...
Empirically analyzing empirical evidence
One of the central goals in any scientific endeavor is to understand causality. Experiments that seek to demonstrate a cause/effect relation most often manipulate the postulated causal factor. Aarts et al. describe the replication of 100 experiments reported in papers published in 2008 in three high-ranking...
Previous research has shown that having rich neighbors is associated with reduced levels of subjective well-being, an effect that is likely due to social comparison. The current study examined the role of income inequality as a moderator of this relative income effect. Multilevel analyses were conducted on a sample of more than 1.7 million people f...
Previous research shows that the correlation between income and life satisfaction is small to medium in size. We hypothesized that income may mean different things to people at different ages and, therefore, that the association between income and life satisfaction may vary at different points in the life course. We tested this hypothesis in 3 nati...
Purpose
The present paper assessed the validity of single-item life satisfaction measures by comparing single-item measures to the Satisfaction with Life Scale (SWLS)—a more psychometrically established measure.
Methods
Two large samples from Washington (N = 13,064) and Oregon (N = 2,277) recruited by the Behavioral Risk Factor Surveillance System...
Schnall, Benton, and Harvey (2008) hypothesized that physical cleanliness reduces the severity of moral judgments. In support of this idea, they found that individuals make less severe judgments when they are primed with the concept of cleanliness (Exp. 1) and when they wash their hands after experiencing disgust (Exp. 2). We conducted direct repli...
Johnson, Cheung, and Donnellan (2014a) reported a failure to replicate Schnall, Benton, and Harvey (2008)’s effect of cleanliness on moral judgment. However, inspection of the replication data shows that participants provided high numbers of severe moral judgments – a ceiling effect. In the original data percentage of extreme responses per moral di...
We attempted high-powered direct replications of the two experiments in Schnall, Benton, and Harvey (2008) and did not duplicate the original results. We therefore concluded that more research was needed to establish the size and robustness of the original effects and to evaluate potential moderators. Schnall (2014) suggests that our conclusions we...