Canadian and Spanish youths' risk perceptions of drinking and driving, and riding with a drunk driver

The present research compared Canadian and Spanish youths' perceptions of the potential benefits and drawbacks of driving under the influence of alcohol (DUI) and riding with a drunk driver (RDD). Eighty (41 female) Canadian and 87 (71 female) Spanish undergraduates completed a survey asking about their past and forecasted engagement in DUI and RDD, and their perceptions of the benefits and drawbacks of DUI and RDD. A sizeable proportion of both samples reported DUI and RDD in the past year. Past risk takers forecasted significantly greater chances of engaging in these behaviors in the following year compared to those who had not engaged in DUI and RDD. Both samples provided significantly more drawbacks than benefits of DUI and RDD. Whereas the benefits of both behaviors tended to refer to personal effects (e.g., save money, arrive faster) that occurred before, during, or after driving, the drawbacks referred to a range of outcomes (e.g., accident, kill/injure, penal sanction) that mostly occurred during driving. Although Canada and Spain differ in important respects (e.g., potential penalty for DUI), there were similarities in the two samples' perceptions of DUI and RDD. Young people are aware of the costs of these risky behaviors but nevertheless engage in them. These findings can inform theories of the co-occurrence of risky driving behaviors, and the development of prevention programs that focus on perceived outcomes.     

Changes in children’s perception-action tuning over short time scales: Bicycling across traffic-filled intersections in a virtual environment

This investigation examined short-term changes in child and adult cyclists’ gap decisions and movement timing in response to general and specific road-crossing experiences. Children (10- and 12-year-olds) and adults rode a bicycle through a virtual environment with 12 intersections. Participants faced continuous cross traffic and waited for gaps they judged were adequate for crossing. In the control condition, participants encountered randomly ordered gaps ranging from 1.5 to 5.0 s at all intersections. In the high-density condition, participants encountered high-density intersections sandwiched between sets of control intersections. These high-density intersections were designed to push participants toward taking tighter gaps. Participants in both conditions were more likely to accept 3.5-, 4.0-, 4.5-, and 5.0-s gaps at the last set of intersections than at the first set of intersections, whereas participants in the high-density condition were also more likely to accept very tight 3.0-s gaps at the last intersections than at the first intersections. Moreover, individuals in the high-density condition who waited less and took shorter gaps at the middle intersections were also more likely to take very tight 3.0-s gaps at the last intersections. The 10-year-olds in both conditions had more time to spare when they cleared the path of the oncoming car at the last intersections, whereas the 12-year-olds and adults showed no change in time to spare across intersections. The discussion focuses on linking short-term change in perceptual-motor functioning to longer term perceptual-motor development.     

Cognitive model decomposition of the BART: Assessment and application

The Balloon Analogue Risk Task, or BART, aims to measure risk taking behavior in a controlled setting. In order to quantify the processes that underlie performance on the BART, Wallsten, Pleskac, and Lejuez (2005) proposed a series of mathematical models whose parameters have a clear psychological interpretation. Here we examine a 2-parameter simplification of Wallsten et al.’s preferred 4-parameter model. A parameter recovery study shows that — with plausible restrictions on the number of participants and trials — both parameters (i.e., risk taking γ⁺ and response consistency β) can be estimated accurately. To demonstrate how the 2-parameter model can be used in practice, we implemented a Bayesian hierarchical version and applied it to an empirical data set in which participants performed the BART following various amounts of alcohol intake.     

Relationships between digit ratio 2D:4D and self-reported aggression and risk taking in an online study

2D:4D, the length ratio of the second to the fourth digit, is a putative measure of prenatal testosterone, which may have effects on aggression and risk taking. Participants in a German online study (>1000 females, >1200 males) submitted their self-measured digit lengths and self-report measures on verbal and physical aggression and risk taking. For males, left-hand 2D:4D and verbal aggression correlated significantly (r = −.10, after correction for age and reduced reliability in self-measured 2D:4D), with other relationships being similar but non-significant. For females, no relationships between aggression and 2D:4D were found. Risk taking and right-hand 2D:4D correlated significantly in women (r = −.10, after correction for age and reduced reliability in self-measured 2D:4D); similar, but statistically non-significant, relationships were found in men. The result corroborates an emerging view that 2D:4D is negatively related to aggression in males and that 2D:4D is negatively related to risk taking. This tentatively points to effects of prenatal testosterone on these characteristics.     

Excessive confidence in visually-based estimates

People exhibit excessive confidence in visually-based estimates, which in turn biases decision making. Three experiments support this assertion. Experiment 1 shows a strong impact of presentation format on estimation of proportions. Experiment 2 shows that people rely on these erroneous estimates to make incentive-compatible decisions even when objective information can be easily obtained. Experiment 3 demonstrates that the biased decisions disappear when confidence in visually-based estimates is called into question by the perceived complexity of the stimulus.     

Predicting domain‐specific risk taking with the HEXACO personality structure

Although risk taking traditionally has been viewed as a unitary, stable individual difference variable, emerging evidence in behavioral decision‐making research suggests that risk taking is a domain‐specific construct. Utilizing a psychological risk‐return framework that regresses risk taking on the perceived benefits and perceived riskiness of an activity (Weber & Milliman, 1997 ), this study examined the relations between risk attitude and broad personality dimensions using the new HEXACO personality framework (Lee & Ashton, 2004 ) across four risk domains. This personality framework, which has been replicated in lexical studies in over 12 natural languages, assess personality over six broad personality dimensions, as opposed to the traditional Five‐Factor Model, or “Big Five.” Through path analysis, we regressed risk taking in four separate domains on risk perceptions, perceived benefits, and the six HEXACO dimensions. Across all risk domains, we found that the emotionality dimension was associated with heightened risk perceptions and high conscientiousness was associated with less perceived benefits. We also report several unique patterns of domain‐specific relations between the HEXACO dimensions and risk attitude. Specifically, openness was associated with risk taking and perceived benefits for social and recreational risks, whereas lower honesty/humility was associated with greater health/safety and ethical risk taking. These findings extend our understanding of how individuals approach risk across a variety of contexts, and further highlight the utility of honesty/humility, a dimension not recovered in Big Five models, in individual differences research. Copyright © 2010 John Wiley & Sons, Ltd.     

Trajectory of risky decision making for potential gains and losses from ages 5 to 85

The ability to make advantageous decisions in the face of uncertainty is an essential human skill, yet the development of such abilities over the lifespan is still not well understood. In the current study, from childhood through older adulthood, we tracked the developmental trajectory of risk taking for gains and losses, and expected value (EV) sensitivity in risky choices. In the gain domain, risk‐taking decreased consistently across the lifespan. In the loss domain, risk‐taking was relatively constant across ages, a result we attribute to the pervasiveness of loss aversion. EV sensitivity showed an inverted‐U‐shaped function, increasing from childhood to adulthood but then decreasing for the elderly, which occurred for both risky gains and risky losses. This finding is consistent with neuropsychological and neuroanatomical evidence concerning the role of the frontal lobe in decision making, which is relatively late to develop during childhood but may degrade earlier in the later years. Copyright © 2010 John Wiley & Sons, Ltd.     

Power,testosterone, and risk‐taking

Power has been found to increase risk‐taking (Anderson & Galinsky, 2006 ) but this effect appears to be moderated by individual differences in power motivation (Maner, Gailliot, Butz, & Peruche, 2007 ). Among individuals high in power motivation, the experience of power leads to more conservative decisions. As testosterone is associated with the pursuit of power and status (Dabbs & Dabbs, 2000 ), we reasoned that high‐testosterone individuals primed with power might be similarly risk‐avoidant. Conversely, we hypothesized that high‐testosterone individuals primed with low power, would see risk‐taking as a vehicle for pursuing potential gains to their status and resources. We report findings from two experiments that are consistent with these predictions. In Experiment 1, higher testosterone males (as indicated by second–fourth digit ratio) showed greater risk‐taking when primed with low power. Experiment 2 replicated this effect and also showed that when primed with high power, higher testosterone males took fewer risks. Copyright © 2009 John Wiley & Sons, Ltd.     

Do-no-harm in coalition formation: Why losses inhibit exclusion and promote fairness cognitions

Previous research on coalition formation has established that people will not hesitate to exclude others in order to maximize their payoff. The authors propose that this view is too narrow and that the decision to exclude depends on the valence of the payoff. Consistent with a “do-no-harm” hypothesis, Experiment 1 showed that participants were more reluctant to exclude in order to minimize their losses than to maximize their gains. Experiment 2 replicated this effect and showed that participants were most affected by payoff valence when they were disposed to consider the viewpoint of others. Additional analyses revealed that participants were more motivated by fairness (Experiment 1) and that fairness was more cognitively accessible (Experiment 2) when payoffs were negative rather than positive.