Effects of role model exposure on STEM and non‐STEM student engagement

Studies examining factors (e.g., STEM stereotypes) that underlie the recruitment and retention of STEM students are critical as the demand for STEM professionals is rapidly increasing. This experimental study tested the effects of role model biographies that challenge common STEM stereotypes (i.e., STEM is for gifted individuals and for European American males) on 1035 STEM and non‐STEM undergraduate students. Findings showed that role model exposure had positive effects on both STEM and non‐STEM students’ interest in STEM as well as their perceived identity compatibility between the self and STEM. Role model exposure had a positive impact on academic sense of belonging among STEM and non‐STEM students, and a positive impact on academic self‐efficacy among STEM students, but not non‐STEM students.     

Why people harm the organization and its members: Relationships among personality,organizational commitment,and workplace deviance

Based on the five-factor model of personality traits and social exchange theory, this study examines the relationships of personality traits, organizational commitment, and two target-based factors of workplace deviance (organizational deviance and interpersonal deviance), using a sample of 113 South Korean employees. By the use of path-analysis, we first found that Agreeableness, Conscientiousness, and Emotional Stability were meaningfully related to organizational commitment. In addition, both the effect of Conscientiousness on organizational deviance and the effect of Agreeableness on interpersonal deviance were partially mediated by organizational commitment. In sum, results clearly show that the personality traits of Conscientiousness (impersonal) and Agreeableness (interpersonal) function differently in predicting workplace deviance.     

The dynamics of the visual system in combining conflicting KDE and binocular stereopsis cues

The dynamics of the visual system in combining multiple depth cues were investigated by measuring the temporal change in the perceived 3-D shape of a random-dot stimulus with conflicting kinetic depth effect (KDE) and binocular stereopsis cues. The KDE shape perception dominated for the first few seconds, and then was gradually supplanted by the stereo shape perception. The effects of various pre-adaptation stimuli suggested that the temporal change in the perceived shape resulted from a self-adaptation of the KDE mechanism that occurs mainly at the levels of motion and relative motion detection.     

Similarity-scaling studies of dot-pattern classification and recognition.

Classification performance in the dot-pattern, prototype-distortion paradigm (e.g., Posner & Keele, 1968) was modeled within a multidimensional scaling (MDS) framework. MDS solutions were derived for sets of dot patterns that were generated from prototypes. These MDS solutions were then used in conjunction with exemplar, prototype, and combined models to predict classification and recognition performance. Across 3 experiments, an MDS-based exemplar model accounted for the effects of several fundamental learning variables, including level of distortion of the patterns, category size, delay of transfer phase, and item frequency. Most important, the model quantitatively predicted classification probabilities for individual dot patterns in the sets, not simply general trends of performance. There was little evidence for the existence of a prototype-abstraction process that operated above and beyond pure exemplar-based generalization.     

Enhanced Hippocampal CA1 LTP but Normal Spatial Learning in Inositol 1,4,5-trisphosphate 3-kinase(A)-Deficient Mice

To define the physiological role of IP₃3-kinase(A) in vivo, we have generated a mouse strain with a null mutation of the IP₃3-kinase(A) locus by gene targeting. Homozygous mutant mice were fully viable, fertile, apparently normal, and did not show any morphological anomaly in brain sections. In the mutant brain, the IP₄ level was significantly decreased whereas the IP₃ level did not change, demonstrating a major role of IP₃3-kinase(A) in the generation of IP₄. Nevertheless, no significant difference was detected in the hippocampal neuronal cells of the wild-type and the mutant mice in the kinetics of Ca²⁺ regulation after glutamate stimulation. Electrophysiological analyses carried out in hippocampal slices showed that the mutation significantly enhanced the LTP in the hippocampal CA1 region, but had no effect on the LTP in dentate gyrus (DG). No difference was noted, however, between the mutant and the wild-type mice in the Morris water maze task. Our results indicate that IP₃3-kinase(A) may play an important role in the regulation of LTP in hippocampal CA1 region through the generation of IP₄, but the enhanced LTP in the hippocampal CA1 does not affect spatial learning and memory.     

When do job-insecure employees keep performing well? The buffering roles of help and prosocial motivation in the relationship between job insecurity,work engagement,and job performance

Journal of Business and Psychology - Drawing on the job demands-resources model, this study aims to explore the boundary conditions that buffer the negative effect of job insecurity on work...     

Preregistration Is Neither Sufficient nor Necessary for Good Science

To address widespread perceptions of a reproducibility crisis in the social sciences, a growing number of scholars recommend the systematic preregistration of empirical studies. The purpose of this article is to contribute to an epistemological dialogue on the value of preregistration in consumer research by identifying the limitations, drawbacks, and potential adverse effects of a preregistration system. After a brief review of some of the implementation challenges that commonly arise with preregistration, we raise three levels of issues with a system of preregistration. First, we identify its limitations as a means of advancing consumer knowledge, thus questioning the sufficiency of preregistration in promoting good consumer science. Second, we elaborate on why consumer science can progress even in the absence of preregistration, thereby also questioning the necessity of preregistration in promoting good consumer science. Third, we discuss serious potential adverse effects of preregistration, both at the individual researcher level and at the level of the field as a whole. We conclude by offering a broader perspective on the narrower role that preregistration can play within the general pursuit of building robust and useful knowledge about consumers.     

The Relations of Cognitive Triad, Dysfunctional Attitudes, Automatic Thoughts, and Irrational Beliefs with Test Anxiety

Previous research has highlighted the important role of cognition in anxiety, including test anxiety. The present study explores the role of cognitive distortions and irrationality in test anxiety by studying the relationships among cognitive triad (core beliefs), dysfunctional attitudes (intermediate beliefs), negative automatic thoughts, irrational beliefs, debilitating test anxiety, and facilitating test anxiety in 138 undergraduates. Multiple regression analyses showed that only the cognitive triad as a whole was a significant predictor of debilitating anxiety. Specifically, negative view of self was a significant predictor of debilitating anxiety. The results supported an expansion of the current cognitive conceptualizations of test anxiety to include the importance of negative self-view. Other implications are also discussed.     

The impact of Parkinson's disease on sequence learning: perceptual pattern learning and executive function

The current study examined the contribution of brain areas affected by Parkinson's disease (PD) to sequence learning, with a specific focus on response-related processes, spatial attentional control, and executive functioning. Patients with mild PD, patients with moderate PD, and healthy age-matched participants performed three tasks-a sequence learning task with a spatial pattern that was incidental to response selection, a spatial cuing task, and neuropsychological tests of executive function. Whereas moderate PD patients failed to show significant sequence learning, mild PD patients performed comparably with controls. Neither group of PD patients was impaired in the control of spatial attention. Sequence learning was correlated with neuropsychological measures of executive function but not with the ability to control spatial attention. These results suggest that the contribution of the brain areas affected by PD to sequence learning extends beyond motor learning to include the learning of perceptual patterns and involves executive function, including cognitive flexibility and set shifting.     

Safe driving communication: A regulatory focus perspective

This research article examines the effects of self‐regulation on adolescents' aggressive driving tendencies and their attitudes toward safe driving communication. Two experimental studies demonstrate that an individual's regulatory orientation is a good predictor of aggressive driving tendencies and that self‐regulation plays a moderating role on the effects of safe driving messages on recipients' attitudes. Specifically, the findings reveal that promotion‐oriented (vs. prevention‐oriented) individuals are more likely to demonstrate aggressive driving tendencies. In addition, promotion‐oriented individuals show more favorable attitudes toward gain‐framed safe driving messages than loss‐framed messages. Prevention‐oriented individuals show the opposite pattern. Implications for theory and practice are discussed.