Shoot or don't shoot? Why police officers are more inclined to shoot when they are anxious

We investigated the effect of anxiety on police officers' shooting decisions. Thirty-six police officers participated and executed a low- and high-anxiety video-based test that required them to shoot or not shoot at rapidly appearing suspects that either had a gun and "shot," or had no gun and "surrendered." Anxiety was manipulated by turning on (high anxiety) or turning off (low anxiety) a so-called "shootback canon" that could fire small plastic bullets at the participants. When performing under anxiety, police officers showed a response bias toward shooting, implying that they accidentally shot more often at suspects that surrendered. Furthermore, shot accuracy was lower under anxiety and officers responded faster when suspects had a gun. Finally, because gaze behavior appeared to be unaffected by anxiety, it is concluded that when they were anxious, officers were more inclined to respond on the basis of threat-related inferences and expectations rather than objective, task-relevant visual information.     

Religiosity and obesity: are overweight people more religious?

The present study was undertaken to test the recently advanced hypothesis that highly religious people are more prone to obesity than is true for people in general. Based on a sample of over 6000 middle- to older-aged women, the study found essentially no support for the hypothesis. The only possible exception was in the case of members of certain denominations with historically high birth rates.     

Do people access meaning when they name banknotes?

Do people access the monetary value of banknotes when they say them aloud? In this study, we evaluated this question by asking people to name sequences of euro banknotes blocked by category or mixed with exemplars of other categories. The participants did not show an interference effect in the blocked context. The absence of semantic interference effect was also observed when participants named euro banknotes that did not have imprinted monetary value. These results suggest a direct connection between perceiving banknotes and accessing their names.     

Do people really believe they are above average?

A question that has plagued self-enhancement research is whether participants truly believe the overly positive self-assessments they report, or whether better-than-average effects reflect mere hopes or self-presentation. In a test of people’s belief in the accuracy of their self-enhancing trait ratings, participants made a series of bets, each time choosing between betting that they had scored at least as high on a personality test as a random other participant, or betting on a random drawing in which the probability of success was matched to their self-assigned percentile rank on the test. They also reported the point at which they would switch their bet from their self-rating to the drawing, or vice versa. Participants were indifferent between betting on themselves or on the drawing, and it took only a slight change in the drawing’s probability for them to switch their bet, indicating that people truly believe their self-enhancing self-assessments.     

Wearable computing: Will it make people prosocial?

We recently reported that people who wear an eye tracker modify their natural looking behaviour in a prosocial manner. This change in looking behaviour represents a potential concern for researchers who wish to use eye trackers to understand the functioning of human attention. On the other hand, it may offer a real boon to manufacturers and consumers of wearable computing (e.g., Google Glass), for if wearable computing causes people to behave in a prosocial manner, then the public's fear that people with wearable computing will invade their privacy is unfounded. Critically, both of these divergent implications are grounded on the assumption that the prosocial behavioural effect of wearing an eye tracker is sustained for a prolonged period of time. Our study reveals that on the very first wearing of an eye tracker, and in less than 10 min, the prosocial effect of an eye tracker is abolished, but by drawing attention back to the eye tracker, the implied presence effect is easily reactivated. This suggests that eye trackers induce a transient social presence effect, which is rendered dormant when attention is shifted away from the source of implied presence. This is good news for researchers who use eye trackers to measure attention and behaviour; and could be bad news for advocates of wearable computing in everyday life.     

Simple predictions fueled by capacity limitations: when are they successful?

Counterintuitively, Y. Kareev, I. Lieberman, and M. Lev (1997) found that a lower short-term memory capacity benefits performance on a correlation detection task. They assumed that people with low short-term memory capacity (low spans) perceived the correlations as more extreme because they relied on smaller samples, which are known to exaggerate correlations. The authors consider, as an alternative hypothesis, that low spans do not perceive exaggerated correlations but make simpler predictions. Modeling both hypotheses in ACT-R demonstrates that simpler predictions impair performance if the environment changes, whereas a more exaggerated perception of correlation is advantageous to detect a change. Congruent with differences in the way participants make predictions, 2 experiments revealed a low capacity advantage before the environment changes but a high capacity advantage afterward, although this pattern of results surprisingly only existed for men.     

Social exchange and well-being: is giving better than receiving?

This research examined the effects of giving and receiving assistance on psychological well-being while taking into account other salient dimensions of social support including negative interaction and anticipated support. Structural equation models were evaluated by using data derived from a national probability sample of 1,103 individuals aged 65 years or older. Results indicate that the major dimensions of social support are significantly interrelated, not only directly but also indirectly. Giving and receiving support have both positive and negative consequences on well-being. With reference to the role of reciprocity, the evidence provides some support for the hypothesis of esteem enhancement instead of social exchange and equity theories.     

Predicting World Cup results: Do goals seem more likely when they pay off?

Bar-Hillel and Budescu (1995) failed to find a desirability bias in probability estimation. The World Cup soccer tournament provided an opportunity to revisit the phenomenon in a context in which desirability biases are notoriously rampant. Participants estimated the probabilities of various teams’ winning their upcoming games. They were promised money if one team—randomly designated by the experimenter—won its upcoming game. Participants assigned a higher probability to a victory by their target team than did other participants, whose promised monetary reward was contingent on the victory of its opponent. Prima facie, this seems to be a desirability bias. However, in a follow-up study that made one team salient, without promising monetary rewards, participants also judged their target team to be more likely to win. On grounds of parsimony, we conclude that what appears to be a desirability bias may just be a salience/marking effect, and—although optimism is a robust and ubiquitous human phenomenon—that wishful thinking still remains elusive.     

Having less,giving more? Two preregistered replications of the relationship between social class and prosocial behavior

In the present report, we describe two planned direct replications of studies on the relationship between social class and prosocial behavior. In the original studies, individuals with higher socioeconomic status have been shown to behave less prosocially across a variety of domains. This finding continues to influence both research and the public debate on the psychological correlates of social class. At the same time, the validity of the original findings has been contested. Against this background, pre-registered direct replication studies with sufficient statistical power are warranted to test the robustness of these influential findings. We conducted two replication studies to provide valuable diagnostic information with regard to the relationship between social class and prosocial behavior. Our results indicate that the generalizability of the original findings may be much more limited than suggested. In addition, they highlight the need for an increased reliance on psychometrically established measures to facilitate cumulative research on the relationship between social class and prosocial behavior.     

Bridging in social networks: Who are the people in structural holes and why are they there?

The current paper examines the psychological characteristics of people who link tightly connected cliques to each other with friendship ties. Based on the work of sociologist Georg Simmel, I argue that these people are characterized by two separate motivations, which I call entrepreneurial and relationship-building motivations. Using a complete network from a heterogeneous class of Jewish-, Arab-, and Druze-Israelis, I provide the first empirical evidence of their existence. Gould and Fernandez's brokerage roles were calculated for each participant, and triad proportions from each brokerage type were correlated with well-established psychological questionnaires. Results indicate the existence of two psychologically distinct network orientations, easily interpretable in terms of Simmel's analysis of processes in triads.     

Causal attributions of married couples: when do they search for causes? What do they conclude when they do?

In this study, we examined when and whether married people engage in attributional activity or form causal attributions to explain their partners' behavior. We used an indirect probe to better approximate naturally occurring cognitive activity. We also examined the content of spouses' causal attributions, using both direct and indirect probes. Spouses were asked about frequent as well as infrequent relationship events, and about partner behaviors that had positive or negative impacts on the recipient. Husbands in unsatisfying relationships reported more attributional thoughts than did happily married husbands, whereas wives in the two groups did not differ. Behaviors having negative impacts elicited more attributional activity than did positive behaviors. Behavioral frequency and impact interacted in ways contrary to predictions. Finally, distressed couples were particularly likely to report distress-maintaining attributions and were particularly unlikely to report relationship-enhancing attributions, compared with their nondistressed counterparts.     

Functional and dysfunctional perfectionists: are they different on compulsive-like behaviors?

Both perfectionism and excessive responsibility have been linked to obsessive compulsive disorder (OCD). Up to now however, a greater number of studies have focused on the role of responsibility. The present study compared compulsive-like behavior of people with different styles of perfectionism. Sixteen functional perfectionists (FP) and 16 dysfunctional perfectionists (DP) were compared on three different tasks in order to explore OC type behavior such as doubting, checking and intrusions. Results show that DP participants, compared to FP participants, scored higher on an OC behavior scale, took significantly more time to complete a precision task and precipitated their decision when confronted with ambiguity. The two groups also tended to differ in their intrusive thoughts following an unsolved problem; FP participants were more preoccupied about solving the problem than about the quality of their performance, contrary to DP subjects. Results are discussed according to theoretical models of OCD.     

Why are some people with neurological illness more resilient than others?

The current qualitative study was designed to evaluate the coping strategies of people living with a chronic progressive neurological illness and their carers. The neurological illnesses were Huntington's disease, motor neurone disease, multiple sclerosis and Parkinson's disease. Participants included 15 people who showed high levels of adjustment and 15 who showed low levels of adjustment. Participants were selected from an earlier study, to ensure that they satisfied the inclusion criteria for the current study. Interviews were completed to determine the strategies used to cope with the demands of the illness. Participants who demonstrated good adjustment were more likely to draw on social support to provide them with the resources to deal with the illness. In contrast, those who evidenced poor adjustment were more likely to draw on external supports to complete tasks for them. The implications of these findings for people with chronic neurological illnesses and their families are discussed.     

Computer problems: are some people jinxed?

To examine the popular notion that some people are 'jinxed' when using computers 111 undergraduate psychology students were 'jinxed' whilst trying to complete a task over the Internet. No evidence was found to support that notion.     

Effects of frequency on visual word recognition tasks: where are they?

Compared the effect of frequency on lexical decision time (LDT) with that on reaction time (RT) in four other tasks, for the same words and subjects. Exp. 1 yielded an effect on semantic categorization RT (person vs. thing) similar in size and form to the effect on LDT. Exp. 2 yielded a substantial effect for syntactic categorization (noun vs. adjective), although weaker than the effect on LDT. In Exp. 3, the effect on naming RT for stress-final disyllabic words was identical to that on LDT, whereas the effect for stress-initial words was weaker. Exp. 4 showed no effect of frequency on delayed naming RT. The data undermine recent arguments for a (mainly) postidentification task-specific locus of frequency effects but are compatible with the older assumption (also characteristic of new PDP learning models) that lexical identification is a major locus of frequency effects (perhaps together with retrieval of meaning or phonology). But effects at that locus may be masked or diluted by other processes.     

Materialism and charitable giving: Can they co‐exist?

It is generally believed that Western societies are more materialistic compared with other cultures. However, it has also been observed that Americans are among the most generous of all, contributing their time, money, and effort to charitable causes. This research attempted to examine the relationship between materialism and charitable giving. Results of an empirical study suggest that it is possible for materialism to co‐exist with charitable giving. Implications of the findings and suggestions for future research are also discussed. Copyright © 2012 John Wiley & Sons, Ltd.     

Correlations between spatial compatibility effects: are arrows more like locations or words?

Responses are more efficient when their spatial mappings with features of targets are compatible compared to when they are incompatible, even when those features are irrelevant to task performance. Currently, a debate exists as to whether spatial information conveyed by different stimulus modes leads to qualitatively different spatial representations. We investigated the relations between three of the most commonly used spatial stimulus modes-arrows, locations, and location words-using correlations of compatibility effects between each of these modes as well as compatibility effects at different segments of their response time distributions. Our results show that when spatial information is irrelevant to task performance (the Simon task), the compatibility effects elicited by arrows and words are more strongly related with each other than with those of locations. However, when spatial information is task relevant (the stimulus-response compatibility SRC task), the compatibility effects elicited by arrows and locations are more related, and both are less related to the effect elicited by words. We suggest that these changing relations between stimulus modes are strategically determined based on which spatial coding technique for arrows is most advantageous to task performance. Furthermore, the varying relations between these spatial compatibility effects indicate that the compatibility effect with one stimulus mode is not always predictive of the compatibility effect in another mode.