The weighing of pathological and non-pathological information in clinical judgment

On the basis of the classic data of Meehl (1959), I examine how clinical psychologists use the MMPI scales to judge the degree of pathology of psychiatric patients by comparing linear models of the judgment to a linear model of the criterion (the actual diagnosis of the patients). This comparison reveals that excessively heavy weight is assigned to pathological information in comparison to non-pathological information. Additional analyses reveal that this biased weighing also influences the actual diagnosis and that it is a major determinant of the accuracy of clinical judgment. It is suggested that these effects arise from a confirmation bias associated with the hypothesis that a patient has severe, rather than mild, pathology.     

Judging Risk and Return of Financial Assets

This article examines the relationship between judgments of risk and judgments of expected return of financial assets. It suggests that for unfamiliar assets, both risk and return judgments are derived from global preference toward the asset, whereas for familiar assets, these judgments tend to be derived from the ecological values of the asset's risk and expected return—their values in the financial markets. In addition, the article examines the role of causal schemas and the role of risk attitudes in mediating the relationships between judgments of risk and return of familiar and unfamiliar assets. Conceptual and practical questions concerning the nature, the meaning, and the assessment of risk and expected return are discussed.     

The reaction-time task-rule congruency effect is not affected by working memory load: further support for the activated long-term memory hypothesis

Previous studies claimed that task representation is carried out by the activated long-term memory portion of working memory (WM; Meiran and Kessler in J Exp Psychol Human Percept Perform 34:137–157, 2008). The present study provides a more direct support for this hypothesis. We used the reaction-time task-rule congruency effect (RT-TRCE) in a task-switching setup, and tested the effects of loading WM with irrelevant task rules on RT-TRCE. Experiment 1 manipulated WM load in a between-subject design. WM participants performed a color/shape task switching, while having 0, 1 or 3 numerical task rules as WM load. Experiment 2 used a similar load manipulation (1 or 3 rules to load WM) in a within-subject design. Experiment 3 extended these results by loading WM with perceptual tasks that were more similar to the shape/color tasks. The results show that RT-TRCE was not affected by WM load supporting the activated long-term memory hypothesis.     

Mood and global-local focus: priming a local focus reverses the link between mood and global-local processing

Positive moods promote a focus on the forest (global focus) and negative moods, a focus on the trees (local focus). Is this well-established link fixed or variable? Does it reflect a direct influence of affect, as usually assumed, or is it frequently observed simply because a global perspective is often dominant? If affect serves as information about the value of currently accessible inclinations, and a global focus is generally the default perspective, then the global focus of positive affect and local focus of negative affect might be variable rather than fixed. Two experiments tested this hypothesis using different mood inductions, different tests of global-local focus, and different methods of inducing global and local perspectives. In each, we discovered that positive affect empowered whatever focus was momentarily dominant. Thus, whether individuals in happy moods saw the forest or the trees depended only on which of the two had been primed.     

Prioritizing Patterns and Life Satisfaction among Ultra-Orthodox Jews: The Moderating Role of the Sense of Community

Abstract

Recent research suggests that individuals differ in the extent to which they seek activities that promote hedonic or eudaimonic well-being. Prioritizing positivity describes a strategy of pursuing happiness by seeking pleasurable activities or circumstances that can lead to naturally occurring positive emotions, while prioritizing meaning describes a strategy of cultivating well-being by purposefully seeking activities that are conducive to experiencing meaning in life. While these notions have been examined among the general population, little is known about how these prioritizing patterns are linked with well-being in closed religious groups, who often promote the benefit of the collective group in lieu of the individual’s personal choices and interests. Based on a sample of 407 Ultra-Orthodox Jewish individuals (mean age?=?33.58, SD?=?8.89), 55.5% of which were women, the results demonstrated that prioritizing meaning and sense of community were positively associated with life satisfaction. Moreover, a significant interaction of sense of community?×?prioritizing positivity was found, indicating a positive connection between prioritizing positivity and life satisfaction for individuals with a high sense of community, but a negative connection for those with a low sense of community. Our findings suggest that even in extremely close-knit community-oriented societies, a strong sense of belonging to a community enables individuals to prioritize more hedonic aspects of their lives in order to promote their life satisfaction.     

Nonmonotonic Reasoning and Causation

It is suggested that taking into account considerations that traditionally fall within the scope of computer science in general, and artificial intelligence in particular, sheds new light on the subject of causation. It is argued that adopting causal notions con be viewed as filling a computational need: They allow reasoning with incomplete information, facilitate economical representations, and afford relatively efficient methods for reasoning about those representations. Specifically, it is proposed that causal reasoning is intimately bound to nonmonotonic reasoning. An account of causation is offered that relies upon this connection, and compares this proposal to previous accounts within philosophy and artificial intelligence.