Finding the "genuine" schizotype: a model and method for resolving heterogeneity in performance on laboratory measures in experimental psychopathology research

Heterogeneity in the performance of persons affected with schizophrenia or schizotypic psychopathology on various laboratory tasks has long been recognized, both for its consistency across tasks and studies and for the massive methodological and substantive challenges it poses for experimental psychopathology, genetic, and other investigations. Traditional multivariate techniques, such as factor analysis, discriminant function analysis, and cluster analysis, have all been deemed inadequate for resolving heterogeneity, because of one or another statistical limitation. Here, an objective statistical approach based on a formal statistical model that uses the ubiquitous and well-developed expectation-maximization (EM) algorithm (A. P. Dempster, N. M. Laird, & D. B. Rubin, 1977) is presented, which enables one effectively to partition a group of experimental subjects, in this case identified initially using the well-known Perceptual Aberration Scale (L. J. Chapman, J. P. Chapman, & M. L. Raulin, 1978), in a manner that reduces heterogeneity and allows for the separation of what are termed genuine and false-positive schizotypes. The validity of the parsing strategy was supported by reference to other laboratory indexes of relevance to schizophrenia and schizotypy that were not included in the initial EM-based analyses. The potential utility of this approach is discussed with reference to future schizophrenia and schizotypy research.     

Examining college students' food security coping strategies and experiences during the COVID-19 pandemic

College students' food situations may have been disrupted by the COVID-19 pandemic, which could have affected their health and well-being. However, little is known about how the pandemic impacted students' food experiences and how students coped with food-related disruptions, particularly from the student's own perspective. This study reviews data from 571 undergraduates who attended public colleges during Fall 2021 and Spring 2022 and wrote a narrative about the pandemic's impact on their food experiences. Most students indicated they experienced a wide range of food difficulties and adapted new food practices. Despite these challenges, students emphasized proactive coping strategies and positive pandemic outcomes rather than difficulties and negative outcomes. These findings have implications for students' long-term health and well-being.     

Diversity of Life Experiences: The Development and Validation of a Biographical Measure of Receptiveness to Dissimilar Others

In light of changing demographics one of the biggest future challenges for selection and promotion will be identifying individuals who are able to effectively work with dissimilar others and are receptive to differences in others. Since a reliable and valid measure of individuals’ receptiveness to dissimilar others does not currently exist, a biodata-based measure of this construct was developed using traditional scale development techniques. Evidence of the new measure’s reliability and validity are provided. Implications for theory-building and future research are presented, as well as potential applications for selection and assessment.     

Follow-up survey of pregnancies with diagnoses of chromosomal abnormality

A small clinical survey was undertaken at East Carolina University School of Medicine to examine the factors which influenced the decisions of five families to continue pregnancies after a chromosomal abnormality was detected. Little has been published concerning the psychosocial effects after continuing pregnancies in which the fetus was diagnosed with a chromosome abnormality by amniocentesis. In order to identify the factors that influenced their decisions, an interview with each couple was undertaken using a 25-part questionnaire. This paper addresses the method of interviewing, case material, and background concerning each couple and the summary of the results.     

Gender and Truthfulness in Daily Life Situations

To determine the extent to which perceivedgender enters into judgments of credibility indaily-life situations, 46 raters (23 males and 23females matched for age and education) read a set ofaccusations and rated synthetic speakers' audiotapedresponses to the accusations on how believable the maleand female synthetic speakers were. The results suggestthat on the daily-life scenarios posed, both male and female speakers are equally likely to judgefemale speakers to be more credible than male speakers,whether the accusation is deemed to reflect anintentional or negligent act.     

An Applied Mereology of the City: Unifying Science and Philosophy for Urban Planning

Based on their research showing that growing cities follow basic principles, two theoretical physicists, Luis Bettencourt and Geoffrey West, call for researchers and professionals to contribute to a grand theory of urban sustainability. In their research, they develop a ‘science of the city’ to help urban planners address problems that arise from population increases. Although they provide valuable insights for understanding urban sustainability issues, they do not give planners a manageable way to approach such problems. I argue that developing an applied mereology to understand the concept of ‘city identity’ gives planners a theoretical device for addressing urban affairs, including ethical concerns. In turn, I devise a model of city identity to show how a ‘philosophy of the city’ contributes to a grand theory of urban sustainability.     

The Use of Prayer to Manage Anger: Do Characteristics of the Emotional Experience Matter?

Research has established that individuals use prayer to manage negative emotions, yet little is known about how the characteristics of individuals’ emotional experiences—such as how long the emotions last and the source of emotions—influence the use of this emotion management strategy. Using data from the 1996 General Social Survey emotion module (N = 1114), we evaluate the extent to which the use of prayer to manage anger is associated with: the intensity, source, and duration of negative emotions experienced; reflection on the negative emotion-inducing incident; and perceived appropriateness of emotional reaction. Estimated logistic regression models show that characteristics of emotional experiences (except perceived appropriateness) are significantly associated with the use of prayer to manage anger. The analyses reveal that the appropriateness of using prayer to manage negative emotions varies based on specific aspects of the emotional experience, carrying implications for interventions such as pastoral counseling or anger management programs.     

The important role of the context in which achievement goals are adopted: an experimental test

Two experimental studies using Elliot, Murayama, and Pekrun’s (Journal of Educational Psychology 103(3):632–648, 2011) differentiation between self-goals and task-goals, were conducted to examine the relative influence of achievement goals and motivational contexts on behavioral and emotional engagement. In Study 1, 133 college students were prompted to adopt self-goals (intrapersonal standards) or other-goals (performance standards) in one of two motivational contexts (autonomy-supportive or autonomy-suppressive) while playing a computer game. In Study 2, 129 college students performed the same assignment, this time adopting either other-goals or task-goals (absolute standards). Study 1 indicated that autonomy-support facilitated behavioral and emotional engagement in autonomy suppressive contexts, but self-goals merely promoted emotional engagement relative to other-goals. Study 2 replicated Study 1’s findings by showing that autonomy support promoted self-reported behavioral engagement and task-goals promoted emotional engagement but further revealed that only when task-goals were adopted in an autonomy-supportive context did they promote better behavioral engagement than other-goals. Thus, Study 2 highlighted the importance of the context in which the achievement goals were adopted (i.e., autonomy-supportive versus suppressive) as an important determinant of the outcome.     

Empathising with the enemy: emotion regulation and support for humanitarian aid in violent conflicts

Considering that negative intergroup emotions can hinder conflict resolution, we proposed integrative emotion regulation (IER) as possibly predicting conciliatory policies towards outgroups in violent conflict. Two studies examined Jewish Israelis’ self-reported IER, empathy, liberal attitudes, and support for humanitarian aid to Palestinians in Gaza. Study 1 (N?=?298) found that unlike reappraisal Jewish Israelis’ ability to explore emotions (e.g. IER) promoted concern for others’ emotions (empathy), which in turn predicted support for humanitarian aid (while controlling for education level, and religiosity). Study 2 (N?=?291) replicated this mediation model, additionally confirming that liberal attitudes (upholding equal, fair treatment for minorities) moderated the relation between IER and support for humanitarian aid. Thus, IER linked more strongly with humanitarian support when the commitment for liberal egalitarian beliefs was high. Preliminary results hold important theoretical and practical implications regarding the potential to empathise with outgroup members in intractable conflicts.