Visual perceptual learning by operant conditioning training follows rules of contingency

Visual perceptual learning (VPL) can occur as a result of a repetitive stimulus-reward pairing in the absence of any task. This suggests that rules that guide Conditioning, such as stimulus-reward contingency (e.g., that stimulus predicts the likelihood of reward), may also guide the formation of VPL. To address this question, we trained subjects with an operant conditioning task in which there were contingencies between the response to one of three orientations and the presence of reward. Results showed that VPL only occurred for positive contingencies, but not for neutral or negative contingencies. These results suggest that the formation of VPL is influenced by similar rules that guide the process of Conditioning.     

Exploring the Ethical Aspects of Leadership: From a Korean Perspective

Theories of ethical leadership provide important insights about the effect of leader’s ethics on the relationship between leaders and followers. However, there is an increasing demand for addressing key constructs that enhance the capacity to explain theoretical aspects of ethical leadership. The purpose of this study is to expand the theoretical framework of ethical leadership based on Korean traditional leadership by focusing on personal cultivation, morality, and social responsibility. Using a framework of intrapersonal process as leadership and core value and competence as components of leadership, this study examines the ethical aspects of Korean traditional leadership and provides the implications to further develop the theory of ethical leadership. It is found that ethical integrity ensued from sugi (self-cultivation) is an essential precondition to develop leadership, and the core value of ethical leadership includes Zhixin-Chijing (cultivation of the mind and internal piety) and the competence consists of both Ipzhi (setting a solid self-vision/establishing goal) and Silsim (practical mind, grasp changes in reality with a sound mind) in Korean traditional leadership that contributes to expanding the theoretical understanding of ethical leadership. Implications for future research in the area of ethical leadership are discussed.     

Examining the role of moral foundations in promoting intergroup contact willingness

Improving people's motivation to seek meaningful intergroup contact is considered key to facilitating intergroup harmony. Based on moral foundations theory, this study examines how moral foundations as individual traits predict contact willingness with three minority groups (foreign domestic helpers, LGBT, and Chinese expats) and how moral emotions mediate such associations. We tested our hypotheses based on survey data across Hong Kong and Singapore. We found that care/harm foundation positively predicted contact willingness with foreign domestic helpers and LGBT people, mediated by compassion. Sanctity/degradation foundation negatively predicted contact willingness with LGBT people only in Singapore. Loyalty/betrayal foundation served as a positive predictor of willingness to contact Chinese expats. We also found care/harm foundation to be exclusively associated with compassion and promoted willingness to contact with helpers and LGBT people. Our findings highlight the influence of moral foundations, and possibly norms and intergroup dynamics at the societal level in predicting willingness to contact outgroups.     

The quality of children's allegations of abuse in investigative interviews containing practice narratives

To enhance the accuracy and completeness of children's testimony, recommendations have included implementing a practice narrative, during which children are prepared for their role as informative witnesses before discussing the allegations. In the present study, we aimed to systematically examine interviewer behaviour and the informativeness of children's testimony in a field setting. As predicted, interviewers posed fewer prompts, proportionally more open-ended prompts, and children provided proportionally more details in response to open-ended prompts in the substantive phase when preceded by a practice narrative than when no practice narrative was conducted. The relationship was enhanced when the practice narratives were conducted as recommended vs those that were conducted in a less open-ended manner. Together with experimental studies showing clear benefits of practice narratives on children's reports, these results underscore the value of a simple practice narrative as a means of enhancing the reliability of children's testimony.     

Dynamic Occlusion and Optical Flow From Corrugated Surfaces

Dynamic occlusion (i.e., accretion and deletion of optical texture at the occluding edge) can occur under many different environmental conditions, for example, objects hidden behind other objects when viewed by a moving observer, objects moving in front of other objects, or an observer approaching a brink. Because each of these conditions may require the actor to respond differently, the actor may need to be able to differentiate these situations reliably. This study was directed at the optical pattern induced by dynamic occlusion that occurs when one locomotes over a rolling terrain (i.e., a corrugated surface). Two experiments were conducted for this purpose. Participants viewed displays simulating their translation along a corrugated surface in which surface corrugation, texture type, and texture density varied as part of experimental control. Results demonstrated that the visual system reliably extracts the global flow pattern for accurate perception of heading direction despite the presence of optical disturbances in optical flow. However, performance nearly failed in the unstructured texture displays wherein optical disturbances were less salient. Still, the results provide strong evidence that human observers are sufficiently sensitive to dynamic occlusion to extract information about heading direction.     

Measuring Religious Attitudes in Secularized Western European Context: A Psychometric Analysis of the Post-Critical Belief Scale

Wulff's two-dimensional model of approaches to religion was an inspiration for the development of the Post-Critical Belief Scale (PCBS), an instrument measuring religious attitudes, that is, “paradigms of religious belief structure” in a secularized Western European context. The scale has been frequently used in psychological studies, has undergone psychometric analyses and modifications, and has been translated into several languages. The current study shows results of a psychometric analysis of the component structure of PCBS in different age groups over time using Clusterwise Simultaneous Component Analysis-Equal Cross-Product (SCA-ECP). The analysis was based on samples collected in Flanders (Belgium; N = 14,599). The one-cluster and two-cluster models yielded three components: Literal Affirmation, Literal Disaffirmation, and Symbolic Attitude, and there were no differences between age groups. In the two-cluster model, subtle differences between samples collected before and after 2002 were found, and these were related to two PCBS items referring to interpretation of Biblical stories. Our finding of a generalized Symbolic Attitude might be related to the changes in the approaches to religion in secularized Western Europe, and might capture the religious (dis-)belief of individuals who are open and tolerant to other religious systems, or alternatively, have become indifferent to them. Further cross-cultural and longitudinal studies are needed to better understand the religious attitudes in a secularized context, and the development of a new scale based on the paradigm of personal meaning systems is suggested     

Emotional Bonds with Parents, Emotion Regulation, and School-Related Behavior Problems Among Elementary School Truants

Among juvenile status offenses, truancy represents the largest share of juvenile court caseloads. As a marker of risk, truancy is important because of its associations with school disengagement, drop-out, and developmental trajectories that include various forms of delinquency and anti-social behavior. Better understanding of the developmental circumstances and needs of truant children may point the way to more effective intervention strategies. Much accumulated research has shown strong associations between the emergence of juvenile delinquency and qualities of caregiving in parent–child relationships. Child-parent attachment in particular has been identified as an important developmental foundation of the child-parent relationship. We used a multi-informant approach to examine associations between children’s self-reported perceptions of attachment security (using the Security Scales), their emotion regulation (reported by parents on the Emotion Regulation Checklist), and school-related behavior problems (as reported by teachers with the Child Behavior Checklist), among 74 elementary school-aged truant children (mean age 9 years). Children and families were recruited through a truancy intervention program in a state in the deep South in the U.S. Data were analyzed via hierarchical multiple regression. Parents’ reports of their children’s emotion regulation predicted behavior problems as reported by teachers. Children’s own reports of their emotional bonds with parents were somewhat less predictive of emotion regulation and behavior problems. Implications for truancy intervention programs for high-risk elementary school children include more focused attention to the importance of children’s developing capacities for emotion regulation and the child-parent bond.     

Stability of Religious Orientation and Academic Dishonesty

This study examines the probable influence of individual religiosity on academic cheating among a group of Seventh-day Adventist youth, grades 6 through 12. A multiple-regression analysis was used to determine the relationship between academic beliefs or behaviors and academic dishonesty. The following research questions were investigated: (1) Is there a relationship between students' religious experience or religious activities and academic honesty? (2) What religious variables influence academic honesty? and (3) What is the correlation between the stability of religious orientation and academic honesty? Although the final model proved to be statistically significant, the findings suggest no direct impact on academic honesty. The implications of this study and the influential factors are discussed.     

Testing Group Mean Differences of Latent Variables in Multilevel Data Using Multiple-Group Multilevel CFA and Multilevel MIMIC Modeling

Considering that group comparisons are common in social science, we examined two latent group mean testing methods when groups of interest were either at the between or within level of multilevel data: multiple-group multilevel confirmatory factor analysis (MG ML CFA) and multilevel multiple-indicators multiple-causes modeling (ML MIMIC). The performance of these methods were investigated through three Monte Carlo studies. In Studies 1 and 2, either factor variances or residual variances were manipulated to be heterogeneous between groups. In Study 3, which focused on within-level multiple-group analysis, six different model specifications were considered depending on how to model the intra-class group correlation (i.e., correlation between random effect factors for groups within cluster). The results of simulations generally supported the adequacy of MG ML CFA and ML MIMIC for multiple-group analysis with multilevel data. The two methods did not show any notable difference in the latent group mean testing across three studies. Finally, a demonstration with real data and guidelines in selecting an appropriate approach to multilevel multiple-group analysis are provided.     

Single and Multiple Ability Estimation in the SEM Framework: A Noninformative Bayesian Estimation Approach

Latent variable models with many categorical items and multiple latent constructs result in many dimensions of numerical integration, and the traditional frequentist estimation approach, such as maximum likelihood (ML), tends to fail due to model complexity. In such cases, Bayesian estimation with diffuse priors can be used as a viable alternative to ML estimation. This study compares the performance of Bayesian estimation with ML estimation in estimating single or multiple ability factors across 2 types of measurement models in the structural equation modeling framework: a multidimensional item response theory (MIRT) model and a multiple-indicator multiple-cause (MIMIC) model. A Monte Carlo simulation study demonstrates that Bayesian estimation with diffuse priors, under various conditions, produces results quite comparable with ML estimation in the single- and multilevel MIRT and MIMIC models. Additionally, an empirical example utilizing the Multistate Bar Examination is provided to compare the practical utility of the MIRT and MIMIC models. Structural relationships among the ability factors, covariates, and a binary outcome variable are investigated through the single- and multilevel measurement models. The article concludes with a summary of the relative advantages of Bayesian estimation over ML estimation in MIRT and MIMIC models and suggests strategies for implementing these methods.