Causal Analysis to Enhance Creative Problem-Solving: Performance and Effects on Mental Models

In recent years, it has become apparent that knowledge is a critical component of creative thought. One form of knowledge that might be particularly important to creative thought relies on the mental models people employ to understand novel, ill-defined problems. In this study, undergraduates were given training in the use of causal relationships in applying mental models in creative problem-solving. A pre-post design was used to assess the effects of this training on mental models and creative problem-solving. It was found that causal analysis training resulted in the acquisition of better mental models (in terms of subjective and objective attributes) and better solutions (in terms of quality, originality, and elegance) to problems calling for creative thought among high-ability participants. The implications of these findings for understanding the role of mental models in creative problem-solving are discussed.     

Of two minds: The interactive effect of construal level and identity on political polarization

Construal level theory posits that that when people are thinking abstractly (vs. concretely) they rely more on their core and consistent attitudes and values. However, past research has been mixed on whether abstract thinking causes liberals and conservatives to become more or less polarized. In the current research, we examine how identity salience moderates the effect of construal level on political polarization. Results from two studies suggest that identity salience (political vs. national) plays a key role in predicting how construal level affects attitude polarization. When people's political identity was made salient, liberals and conservatives were more polarized about political issues when thinking abstractly (vs. concretely). Conversely, when national identity was salient, liberals and conservatives were less polarized when in an abstract (vs. concrete) mindset. Broadly, this research highlights the importance identity salience has in understanding the role abstract (vs. concrete) thinking has on people's attitudes and values.     

Monocular and Binocular Vision in the Control of Goal-Directed Movement

In the present research the authors examined the time course of binocular integration in goal-directed aiming and grasping. With liquid-crystal goggles, the authors manipulated vision independently to the right and left eyes of 10 students during movement preparation and movement execution. Contrary to earlier findings reported in catching experiments (I. Olivier, D. J. Weeks, K. L. Ricker, J. Lyons, & D. Elliott, 1998), neither a temporal nor a spatial binocular advantage was obtained in 1 grasping and 2 aiming studies. That result suggests that, at least in some circumstances, monocular vision is sufficient for the precise control of limb movements. In a final aiming experiment involving 3-dimen- sional spatial variability and no trial-to-trial visual feedback about performance, binocular vision was associated with greater spatial accuracy. Binocular superiority appeared to be most pronounced when participants were unable to adjust their limb control strategy or procedure on the basis of terminal feedback about performance.     

Evaluating the effect of educational media exposure on aggression in early childhood

Preschool-aged children (M = 42.44 months-old, SD = 8.02) participated in a short-term longitudinal study investigating the effect of educational media exposure on social development (i.e., aggression and prosocial behavior) using multiple informants and methods. As predicted, educational media exposure significantly predicted increases in both observed and teacher reported relational aggression across time. Follow-up analyses showed that educational media exposure also significantly predicted increases in parent reported relational aggression across more than a two year period. Results replicate and extend prior research that has demonstrated links between educational media exposure and relational aggression, but not physical aggression, during early childhood.     

On Johnson's (2000) Relative Weights Method for Assessing Variable Importance: A Reanalysis

This article provides a reanalysis of J. W. Johnson's (2000) “relative weights” method for assessing variable importance in multiple regression. The primary conclusion of the reanalysis is that the derivation of the method is theoretically flawed and has no more validity than the discredited method of Green, Carroll, and DeSarbo (1978) on which it is based. By means of 2 examples, supplemented by other results from the literature, it is also shown that the method can result in materially distorted inferences when it is compared with another widely used importance metric, namely, general dominance (Azen & Budescu, 2003; Budescu, 1993). Our primary recommendation is that J. W. Johnson's (2000) relative weights method should no longer be used as a variable importance metric for multiple linear regression. In the final section of the article, 2 additional recommendations are made based on our analysis, examples, and discussion.     

Gender Differences in Associations with Deviant Peer Groups: Examining Individual,Interactional, and Compositional Factors

Researchers have long known that boys are more likely to have deviant peers than are girls. Yet, little research has tried to explain why boys and girls differ in their decision to associate with deviant peers. With the salience of deviant peers well established as a robust predictor of delinquency, we address the question, are the predictors of association with deviant peers different for boys and girls? In our examination of family and community processes, individual effects, and peer group composition factors, we find that the predictors of association with deviant peers differ by gender. In addition, our findings suggest gender divergences in the causes of both deviant peer association and deviant peer pressure. We discuss the implications of our research for both theoretical development and appropriate model estimation.     

Mammograms and the management of existential discomfort: Threats associated with the physicality of the body and neuroticism

The current research employs ideas from terror management theory to investigate why mammograms may be psychologically problematic. This perspective suggests that individuals, particularly those high in neuroticism, are threatened by that which reminds them of their physical and mortal nature. In Study 1, a laboratory experiment demonstrated that when concerns about mortality were primed, reminders of one's physical nature (i.e. creatureliness) led women who were high in neuroticism to report reduced willingness to imagine undergoing a mammogram. In Study 2, a field experiment among women receiving a mammogram showed that priming creatureliness increased perceptions of discomfort with the procedure for women high in neuroticism. Theoretical and practical implications are discussed.     

A survey of smoking status and cancer risk perceptions among participants attending a hospital-based head and neck screening program

Abstract

Screening for head and neck cancer is underutilized. Given that lack of knowledge of the risk factors may partially account for screening underutilization. we surveyed subjective risk and knowledge of risk factors for head and neck cancer among 124 individuals who attended a free. hospital-based head and neck cancer screening. Few participants were current smokers. Most attendees perceived their risk as similar to others of their age and sex. Personal health habits comprised almost all of the risk-decreasing factors, yet less than half of the risk-increasing factors. generated. Personal habits were less frequently endorsed than factors such as pollution and heredity. Those who mentioned a risk behavior, or a family cancer history, reported higher subjective risk. Those who mentioned a personal health habit reported lower subjective risk. Results highlight needed efforts to increase screening among high-risk individuals through targeted education messages.     

Books Received From August 1, 2010 to July 31, 2011

Word learning is a lifelong activity constrained by cognitive biases that people possess at particular points in development. Age of acquisition (AoA) is a psycholinguistic variable that may prove useful toward gauging the relative weighting of different phonological, semantic, and morphological factors at different phases of language acquisition and development. Our aim here was to evaluate AoA as a statistical tool for taking “snapshots” of cognitive development. We examined a large corpus of English nouns (n = 1,381) with AoA as the outcome variable in three separate multivariate regressions, encompassing different age ranges (early–middle–late). Predictors included perceptual (e.g., imagery), phonological (e.g., phonological neighborhood density), and lexical (e.g., word length) factors. Different combinations of predictors accounted for significant proportions of the variance for different AoA ranges (i.e., early–middle–late). For example, imageability and frequency are stronger predictors of early relative to late word learning. These corpus analyses support a hybrid model of word learning in which multiple perceptual and linguistic factors are differentially weighted over time. This statistical approach may provide independent corroboration of and motivation for experimental studies in language learning and cognitive development.