Causal explanation improves judgment under uncertainty,but rarely in a Bayesian way

Three studies reexamined the claim that clarifying the causal origin of key statistics can increase normative performance on Bayesian problems involving judgment under uncertainty. Experiments 1 and 2 found that causal explanation did not increase the rate of normative solutions. However, certain types of causal explanation did lead to a reduction in the magnitude of errors in probability estimation. This effect was most pronounced when problem statistics were expressed in percentage formats. Experiment 3 used process-tracing methods to examine the impact of causal explanation of false positives on solution strategies. Changes in probability estimation following causal explanation were the result of a mixture of individual reasoning strategies, including non-Bayesian mechanisms, such as increased attention to explained statistics and approximations of subcomponents of Bayes’ rule. The results show that although causal explanation of statistics can affect the way that a problem is mentally represented, this does not necessarily lead to an increased rate of normative responding.     

Illness perceptions and self-care behaviours in the first years of living with type 2 diabetes; does the presence of complications matter?

Objective: To assess illness perceptions, self-care behaviours and their relationship in recently diagnosed type 2 diabetes mellitus (T2DM) patients with and without diabetes-related complications.

Design: Cross-sectional survey among 192 recently diagnosed T2DM patients of whom 23% reported the presence of diabetes-related complications. Illness perceptions and self-care were assessed by the Revised Illness Perception Questionnaire (IPQ-R) and the revised Summary of Diabetes Self-Care Activities (SDSCA) measure.

Results: Generally, participating patients perceived T2DM as a chronic, but relatively controllable condition with minor consequences. In the presence of complications, however, T2DM was perceived as more unpredictable with more (serious) consequences and less controllable by self-care or medical treatment. Furthermore, engagement in exercise and foot care was reported more often by patients with complications. Self-care was related to certain illness perception dimensions, and interactions between perceptions and complications were found.

Conclusion: T2DM patients in the first years of their illness are often recommended to make lifestyle changes in the absence of noticeable diabetes-related symptoms or complaints. As many T2DM patients do not seem to perceive their condition to be serious and postpone lifestyle changes until diabetes-related complications appear, a major challenge for professionals is to convince asymptomatic patients of the importance of self-care.     

Scientific faith: Belief in science increases in the face of stress and existential anxiety

Growing evidence indicates that religious belief helps individuals to cope with stress and anxiety. But is this effect specific to supernatural beliefs, or is it a more general function of belief — including belief in science? We developed a measure of belief in science and conducted two experiments in which we manipulated stress and existential anxiety. In Experiment 1, we assessed rowers about to compete (high-stress condition) and rowers at a training session (low-stress condition). As predicted, rowers in the high-stress group reported greater belief in science. In Experiment 2, participants primed with mortality (vs. participants in a control condition) reported greater belief in science. In both experiments, belief in science was negatively correlated with religiosity. Thus, some secular individuals may use science as a form of “faith” that helps them to deal with stressful and anxiety-provoking situations.     

Anxiety and impression formation: Direct information rather than priming explains affect-congruity

Both affect-priming and affect-as-information theories predict that when people are anxious they will form affect-congruent impressions of others, but via different mechanisms. Affect-priming asserts that memory mediates the influence of anxiety on judgement, whereas affect-as-information asserts that people attribute anxiety to the target of judgement. As these theories predicted, anxious participants in Study 1 found an impression-formation target to be more threatening than did control participants. However, this effect was not mediated by memory, and was attenuated in Study 2 when anxious participants attributed their affect to a source other than the target. These findings suggest that anxious people form affect-congruent impressions of others because they attribute their anxiety to the impression-formation target rather than because anxiety primes affect-congruent memory.     

A Comparison of Reading Rates,Comprehension, and Stamina in Oral and Silent Reading of Fourth-Grade Students

This study examined the relationships between silent and oral reading fluency and comprehension. Findings indicated that fourth grade students had consistent levels of comprehension in both reading modes. Students of all reading levels showed a similar pattern across the segments of a text set in both oral and silent reading—a gradual increase in rate from texts one through three, a drop-off on text four, and the fastest speed on text five. A portion of the sample engaged in abnormally rapid silent reading relative to their oral reading rates coupled with low comprehension. Implications for instruction are discussed.     

Dyadic coping in Latino couples: validity of the Spanish version of the Dyadic Coping Inventory

Abstract

This study seeks to validate the Spanish version of the Dyadic Coping Inventory (DCI) in a Latino population with data from 113 heterosexual couples. Results for both partners confirm the factorial structure for the Spanish version (Subscales: Stress Communication, Emotion- and Problem-Focused Supportive, Delegated, and Negative Dyadic Coping, Emotion- and Problem-Focused Common Dyadic Coping, and Evaluation of Dyadic Coping; Aggregated Scales: Dyadic Coping by Oneself and by Partner) and support the discriminant validity of its subscales and the concurrent, and criterion validity of the subscales and aggregated scales. These results do not only indicate that the Spanish version of the DCI can be used reliably as a measure of coping in Spanish-speaking Latino couples, but they also suggest that this group relies on dyadic coping frequently and that this type of coping is associated with positive relationship functioning and individual coping. Limitations and implications are discussed.     

The Scope of Client Aggression Toward Social Workers in Israel

The phenomenon of client violence toward social workers has been documented in various parts of the world. The goal of this study is to describe the phenomenon and explore the relationship pattern between contextual variables and clients’ aggression. The study encompassed a sample of 645 workers in 34 municipal social service agencies. Of the entire sample, 80% reported being exposed to some form of aggression at least once over the last 3 months. The findings highlight 2 broad axes related to client aggressiveness: frequency and level of aggression. With respect to frequency, we can discern a continuum running from common types of aggressive behaviors to rare ones. The other axis focuses on the level of aggressiveness used, from minor types of client aggression, such as verbal assaults and threats, increasing to more severe ones, such as property damage, and, finally, to physical injury. The routineness of aggression in the work environment lends it the appearance of being normal, and functioning in such an environment desensitizes social workers to clients’ aggressiveness. Also examined and discussed are organizational and personal factors that contribute to the aggressive behavior of clients, including seniority, gender, workload, inadequate service conditions, and coworkers’ aggressive behavior.