A randomized experiment comparing random and cutoff-based assignment

In this article, we review past studies comparing randomized experiments to regression discontinuity designs, mostly finding similar results, but with significant exceptions. The latter might be due to potential confounds of study characteristics with assignment method or with failure to estimate the same parameter over methods. In this study, we correct the problems by randomly assigning 588 participants to be in a randomized experiment or a regression discontinuity design in which they are otherwise treated identically, comparing results estimating both the same and different parameters. Analysis includes parametric, semiparametric, and nonparametric methods of modeling nonlinearities. Results suggest that estimates from regression discontinuity designs approximate the results of randomized experiments reasonably well but also raise the issue of what constitutes agreement between the 2 estimates.     

The extended genotype: the heritability of personality accounts for the heritability of recalled family environments in twins reared apart

Abstract How are retrospective accounts of family rearing environments linked to adult personality? We addressed this question by measuring both domains in a sample of 180 reared‐apart twins. Twins completed extensive measures of rearing environments (the Minnesota‐Briggs History Record, the Block Environmental Questionnaire, the Family Environment Scale, and the Physical Facilities Questionnaire) and an omnibus measure of adult personality (the Multidimensional Personality Questionnaire). Retrospective accounts of family environments were partially heritable and all the heritable variance in environmental measures could be accounted for by heritable variance in personality. In addition, differences between twins in their accounts of their rearing environments (nonshared environmental factors) were not significantly linked to differences between twins in their personalities. Hence, family environmental measures appear to be heritable because personality genes influence the way people shape and recall their rearing environments. In addition, differences in reared‐apart twins' retrospectively recalled rearing environments appear to have little impact on differences in their personalities in adulthood.     

The Art of Dying as an Art of Living: Historical Contemplations on the Paradoxes of Suicide and the Possibilities of Reflexive Suicide Prevention

The main aim of this paper is to reconstruct different aspects of the history of ideas of suicide, from antiquity to late modernity, and contemplate their dialectical tension. Reflexive suicide prevention, drawing on the ancient wisdom that the art of living is inseparable from the art of dying, takes advantage, it is argued, of the contradictory nature of suicide, and hence embraces, rather than trying to overcome, death, pain, grief, fear, hopelessness and milder depressions. This approach might facilitate the transformation of inner shame to inter-personal guilt, which is the precondition for coping with losses through grieving that is shared with others. The traditional projection of suicide on the ‘Other’, reinforced by modernity’s bio-political suppression of death, has inhibited development of good suicide prevention. Awareness of the ambiguity and ambivalence found in suicide may work as a resource when measures are taken to address as many causal mechanisms as possible, and bringing special emphasis to external factors.     

Delineating the structure of normal and abnormal personality: an integrative hierarchical approach

Increasing evidence indicates that normal and abnormal personality can be treated within a single structural framework. However, identification of a single integrated structure of normal and abnormal personality has remained elusive. Here, a constructive replication approach was used to delineate an integrative hierarchical account of the structure of normal and abnormal personality. This hierarchical structure, which integrates many Big Trait models proposed in the literature, replicated across a meta-analysis as well as an empirical study, and across samples of participants as well as measures. The proposed structure resembles previously suggested accounts of personality hierarchy and provides insight into the nature of personality hierarchy more generally. Potential directions for future research on personality and psychopathology are discussed.     

Understanding Psychopathology: Melding Behavior Genetics, Personality, and Quantitative Psychology to Develop an Empirically Based Model

ABSTRACT— Research on psychopathology is at a historical crossroads. New technologies offer the promise of lasting advances in our understanding of the causes of human psychological suffering. Making the best use of these technologies, however, requires an empirically accurate model of psychopathology. Much current research is framed by the model of psychopathology portrayed in current versions of the Diagnostic and Statistical Manual of Mental Disorders ( DSM ; American Psychiatric Association, 2000 ). Although the modern DSM s have been fundamental in advancing psychopathology research, recent research also challenges some assumptions made in the DSM —for example, the assumption that all forms of psychopathology are well conceived of as discrete categories. Psychological science has a critical role to play in working through the implications of this research and the challenges it presents. In particular, behavior-genetic, personality, and quantitative-psychological research perspectives can be melded to inform the development of an empirically based model of psychopathology that would constitute an evolution of the DSM .     

A system for tracking gaze on handheld devices

Many of the current gaze-tracking systems require that a subject’s head be stabilized and that the interface be fixed to a table. This article describes a prototype system for tracking gaze on the screen of mobile, handheld devices. The proposed system frees the user and the interface from previous constraints, allowing natural freedom of movement within the operational envelope of the system. The method is software-based, and integrates a commercial eye-tracking device (EyeLink I) with a magnetic positional tracking device (Polhemus FASTRAK). The evaluation of the system shows that it is capable of producing valid data with adequate accuracy.     

Three brief assessments of math achievement

Because of wide disparities in college students?? math knowledge??that is, their math achievement??studies of cognitive processing in math tasks also need to assess their individual level of math achievement. For many research settings, however, using existing math achievement tests is either too costly or too time consuming. To solve this dilemma, we present three brief tests of math achievement here, two drawn from the Wide Range Achievement Test and one composed of noncopyrighted items. All three correlated substantially with the full achievement test and with math anxiety, our original focus, and all show acceptable to excellent reliability. When lengthy testing is not feasible, one of these brief tests can be substituted.     

Literature and the revolution.

Studies in East European Thought -     

La justice organisationnelle comme levier pour promouvoir la qualité de vie au travail

The goal of this study is to show the relevance of organizational justice principles in interventions to prevent psychosocial risks. Following an introduction identifying organizational justice as a predictor of health and quality of work life, we illustrate its application to a diagnosis and an intervention for hospital staff. The responses of 685 employees to a questionnaire identified a lack of support and justice by managers; thus, sensitivity to organizational justice was incorporated into a training program on management and psychosocial risks. A quasi-experiment in which hospital staff participated revealed a beneficial effect of the manager training on justice perceptions of the staff, confirming in part our hypotheses. The illustration in our study of the benefits of using justice principles in manager training offers new perspectives for promoting quality of life at work and reducing psychosocial risks.     

The Yale Children''s Inventory—A screening tool for attention deficits and related disorders. Normative data for boys

Norwegian populated-based normative data on the Yale Children's Inventory (YCI) were provided for boys. All parents of boys aged 8 through 11 years in the county of Hammerfest received the YCI, and 77% responded. Mean scores on the YCI scales attention, activity, tractability, and fine motor were significantly lower in the Norwegian sample compared to the US normative data. Factor analysis of the 40 scale items yielded factors that corresponded generally well to the YCI scale constructs derived from US samples. We conclude that the scale constructs of the YCI seem to be transferable across these two cultures, but that restandardization is warranted. Further research is needed to establish cut-off values for clinical screening purposes. The Yale Children's Inventory has the potential to become a valuable screening tool for behavioral problems at school-age.