Sensitivity of the Wisconsin Card Sorting Test (64-Card Version) versus the Tower of London (Drexel Version) for detecting executive dysfunction in children with epilepsy

Executive function deficits are common in children and adolescents with epilepsy. Though the Wisconsin Card Sorting Task (WCST) is often considered the “gold standard” for executive function assessment, its sensitivity—particularly in the case of the 64-card version (WCST-64)—is insufficiently established in pediatric samples, including children and adolescents with epilepsy. The present investigation assesses the sensitivity of the WCST-64 in children and adolescents with epilepsy in comparison to another measure: the Tower of London – Drexel Version (TOL-DX). A total of 88 consecutively referred children and adolescents with epilepsy were administered both the WCST-64 and TOL-DX as part of a comprehensive neuropsychological evaluation. The sensitivity of WCST-64 and TOL-DX variables were established and relations with epilepsy severity measures and other executive function measures were assessed. Of the WCST-64 variables, Perseverative Responses is the most sensitive, but detected executive function impairment in only 19% of this clinically referred sample; in contrast, the TOL-DX Rule Violations detected executive function impairment in half of the sample. Further, TOL-DX performances are more strongly related to epilepsy severity variables and other executive function measures in comparison to the WCST-64. Despite its popularity amongst clinicians, the WCST-64 is not as sensitive to executive dysfunction in comparison to other measures of comparable administration time, such as the TOL-DX.     

An empirical investigation of dispositional antecedents and performance-related outcomes of credit scores

Many organizations use credit scores as an employment screening tool, but little is known about the legitimacy of such practices. To address this important gap, the reported research conceptualized credit scores as a biographical measure of financial responsibility and investigated dispositional antecedents and performance-related outcomes. Using personality data collected from employees, objective credit scores obtained from the Fair Isaac Corporation, and performance data provided by supervisors, we found conscientiousness to be positively related and agreeableness to be negatively related to credit scores. Results also indicate significant relationships between credit scores and task performance and organizational citizenship behaviors. Credit scores did not, however, predict workplace deviance. Implications for organizations currently using or planning to use credit scores as part of the screening process are discussed.     

Implicit Coping Styles as a Predictor of Aggression

Research exploring potential antecedents of aggression provides contradictory results, with some data relating adaptive coping styles with high aggression and other studies finding the inverse. Clarification of these relationships could improve intervention and prevention strategies. This study investigated relationships between aggression and 3 coping styles (adaptive, neurotic, and maladaptive) via cross-sectional correlational methodology (N = 355). Data supported both hypotheses: First, the use of less adaptive coping styles predicted higher levels of aggression; second, this relationship held true for both cognitive (anger and hostility) and overt (physical and verbal) expressions of aggression. Results indicate that maladaptive coping significantly predicts aggression. Implications include potential prediction and prevention strategies to reduce the probability of higher risk individuals exhibiting aggression.     

The Relationship between Two Measures of the Tendency to Give Socially Desirable Responses

Two measures of the tendency to endorse socially desirable (SD) responses were obtained for 137 Ss. The first was from Edwards' SD scale and the second from an experimental scale consisting of responses in the P-F Study for which ratings of SD were available. There was no significant correlation between these measures. A second group of 94 Ss then rated a sample of 10 items each from the 2 scales on six bipolar dimensions. It is concluded that there is agreement across Ss as to the connotations of a socially desirable response but that personality type statements differ from responses in social situations in respect to the measure each provides of a person's tendency to endorse SD responses.     

The Probability of Collective Choice with Shared Knowledge Structures

Complex decision making typically involves many agents attempting to aggregate many alternatives. If agents' preferences are unconstrained, cyclic outcomes are highly probable. In contrast, we show that if agents share similar models of the choice domain, then a stable collective outcome occurs with about 90% probability. These results have implications for systems of interacting agents, such as group decisions by individuals in social settings or interpretations of sense data by competing perceptual modules of a brain.     

“Seeing” shapes that are almost totally occluded: A new look at Parks’s camel

When a shape moves behind a very narrow window, or “slit,” the entire shape can be recognized, although at any instant only meaningless fragments are visible. In some manner, the human visual system has the ability to piece together these sequential fragments into a coherent shape that is seen as moving across the largely occluded field. As a first step toward understanding how this feat may be accomplished, we show some minimal conditions for recovering the direction and speed of motion of an unknown shape moving behind a slit. Two important conditions are that the object be rigid and that its motion be a simple transition in the image plane.     

Ethnicity, socioeconomic background, and psychosis-proneness in a diverse sample of college students

A sample of 915 college students completed the Perceptual Aberration, Magical Ideation, and Schizotypal Personality Scales. No statistically significant differences were found between African-American (n=209) and European-American (n=591) students on these measures, except on the Perceptual Aberration Scale (p<0.01). Additional analyses revealed that this difference was mediated by the subjects’ gender and socioeconomic background. The results of the present study are consistent with previous studies that have examined the mediating role of socioeconomic background in the performance of African-Americans on the Minnesota Multiphasic Personality Inventory (MMPI) and the Millon Clinical Multiaxial Personality Inventory (MCMI) and confirm that differences on schizotypy measures are best interpreted in the context of the sociocultural background of the subjects.     

The Rawdon-Smith illusion

A loudness illusion is described which was originally reported by Rawdon-Smith and Grindley (1935). It is analogous to the Craik-O’Brien-Cornsweet brightness illusion. Procedures are described for generating and measuring the size of the effect, and data are presented showing factors that influence its magnitude. Other examples are discussed that suggest that this effect is a very general phenomenon.