Responsiveness to feedback as a personal trait

We investigate individual heterogeneity in the tendency to under-respond to feedback (“conservatism”) and to respond more strongly to positive compared to negative feedback (“asymmetry”). We elicit beliefs about relative performance after repeated rounds of feedback across a series of cognitive tests. Relative to a Bayesian benchmark, we find that subjects update on average conservatively but not asymmetrically. We define individual measures of conservatism and asymmetry relative to the average subject, and show that these measures explain an important part of the variation in beliefs and competition entry decisions. Relative conservatism is correlated across tasks and predicts competition entry both independently of beliefs and by influencing beliefs, suggesting it can be considered a personal trait. Relative asymmetry is less stable across tasks, but predicts competition entry by increasing self-confidence. Ego-relevance of the task correlates with relative conservatism but not relative asymmetry.     

Is imprecise knowledge better than conflicting expertise? Evidence from insurers’ decisions in the United States

This paper reports the results of the first experiment in the United States designed to distinguish between two sources of ambiguity: imprecise ambiguity (expert groups agree on a range of probability, but not on any point estimate) versus conflict ambiguity (each expert group provides a precise probability estimate which differs from one group to another). The specific context is whether risk professionals (here, insurers) behave differently under risk (when probability is well-specified) and different types of ambiguity in pricing catastrophic risks (floods and hurricanes) and non-catastrophic risks (house fires). The data show that insurers charge higher premiums when faced with ambiguity than when the probability of a loss is well specified (risk). Furthermore, they tend to charge more for conflict ambiguity than imprecise ambiguity for flood and hurricane hazards, but less in the case of fire. The source of ambiguity also impacts causal inferences insurers make to reduce their uncertainty.     

Are beliefs a matter of taste? A case for objective imprecise information

We argue, in the spirit of some of Jean-Yves Jaffray’s work, that explicitly incorporating the information, however imprecise, available to the decision maker is relevant, feasible, and fruitful. In particular, we show that it can lead us to know whether the decision maker has wrong beliefs and whether it matters or not, that it makes it possible to better model and analyze how the decision maker takes into account new information, even when this information is not an event and finally that it is crucial when attempting to identify and measure the decision maker’s attitude toward imprecise information.     

An Initial Comparison of Live Instruction and Immersive Video Modes of Progressive Muscle Relaxation

Progressive Muscle Relaxation (PMR) is an established treatment for the reduction of anxiety, and has been delivered via live instruction, audiotape, videotape, and immersive video. Although previous research has compared some of these modes of PMR delivery, this is the first study to compare live instruction with immersive video. Participants completed one session of either live instruction or immersive video PMR, and outcome data was obtained for affect, satisfaction, and heart rate. Results indicate the comparability of live instruction and immersive video PMR conditions, as well as the overall effectiveness of a single session of PMR. Moreover, results suggest the potential superiority of immersive video over live instruction in terms of perceived value.     

Discrepant Responding across Self-Report Measures of Men's Coercive and Aggressive Sexual Strategies

Researchers have worked to refine the measurement of women's experiences with sexual victimization. Less is known about the validity and reliability of measures that assess men's use of sexual coercion and aggression. These studies explore the consistency of men's responses to two distinct, but similar, measures of sexual coercion and aggression. The two measures both assess historical use of verbal coercion, sexual assault involving drugs or alcohol, and sexual assault through threat or force. Study 1 used college men as participants (N = 398), whereas Study 2 used a mixed sample of college and community men (N = 184). In both studies, participants’ responses were largely inconsistent across the two measures. This article explores potential measurement issues that may account for the observed reporting discrepancies and offers suggestions for future research.     

Effects of Love Styles on Marital Satisfaction in Heterosexual Couples: A Dyadic Approach

The main objective of this study was to test Actor-Partner Interdependence Models (APIM) describing the relationship between wives' and husbands' love styles and marital satisfaction within heterosexual couples (n=146 couples). Love styles (i.e., Eros, Ludus, Storge, Mania, Pragma, Agape) were set out in Lee's theory of love, which defines love as an attitude, meaning a predisposition to think, feel, and behave toward one's partner. Six APIMs representing each love style were tested using a path analysis procedure. Length of marriage and wives' and husbands' depressive moods were entered into the models as control variables. The results revealed that among the love styles, only Eros contributed to marital satisfaction for both men and women. However, our results showed that wives' Eros style had a positive impact on husbands' marital satisfaction, whereas husbands' Eros style did not influence wives' marital satisfaction.     

Reports of Wins and Risk Taking: An Investigation of the Mediating Effect of the Illusion of Control

Two experiments examined the relationships between the knowledge that another person has won in a gamble, the illusion of control and risk taking. Participants played a computer-simulated French roulette game individually. Before playing, some participants learnt that another person won a large amount of money. Results from a first experiment (n = 24) validated a causal model where the knowledge of another person’s win increased the illusion of control, measured with betting times, expectancy and self-reports on scales, which in turn encourages risk taking. In the second experiment (n = 36), some participants were told the previous player acknowledged the win to be fortuitous. The suppression of the belief that the previous winner had himself exerted control over the outcome resulted in lower rates of risk-taking behaviors. This suggests that it was not the knowledge of another person’s win in itself that increased risk taking, but rather, the belief that the other person had some control over the gamble’s outcome. Theoretical implications for the study of social mechanisms involved in gambling behavior are discussed.