Genetic and environmental influences on executive functions and intelligence in middle childhood

Executive functions (EFs) and intelligence (IQ) are phenotypically correlated. In twin studies, latent variables for EFs and IQ display moderate to high heritability estimates; however, they show variable genetic correlations in twin studies spanning childhood to middle age. We analyzed data from over 11,000 children (9- to 10-year-olds, including 749 twin pairs) in the Adolescent Brain Cognitive Development (ABCD) Study to examine the phenotypic and genetic relations between EFs and IQ in childhood. We identified two EF factors—Common EF and Updating-Specific—which were both related to IQ (rs = 0.64–0.81). Common EF and IQ were heritable (53%–67%), and their genetic correlation (rG = 0.86) was not significantly different than 1. These results suggest that EFs and IQ are phenotypically but not genetically separable in middle childhood, meaning that this phenotypic separability may be influenced by environmental factors.     

Mapping the Personality Psychopathology Five Domains Onto DSM–IV Personality Disorders in Dutch Clinical and Forensic Samples: Implications for DSM–5

The Personality Psychopathology Five (PSY–5) model represents 5 broadband dimensional personality domains that align with the originally proposed DSM–5 personality trait system, which was eventually placed in Section III for further study. The main objective of this study was to examine the associations between the PSY–5 model and personality disorder criteria. More specifically, we aimed to determine if the PSY–5 domain scales converged with the alternative DSM–5 Section III model for personality disorders, with a particular emphasis on the personality trait profiles proposed for each of the specific personality disorder types. Two samples from The Netherlands consisting of clinical patients from a personality disorder treatment program (n = 190) and forensic psychiatric hospital (n = 162) were used. All patients had been administered the MMPI–2 (from which MMPI–2–RF PSY–5 scales were scored) and structured clinical interviews to assess personality disorder criteria. Results based on Poisson or negative binomial regression models showed statistically significant and meaningful associations for the hypothesized PSY–5 domains for each of the 6 personality disorders, with a few minor exceptions that are discussed in detail. Implications for these findings are also discussed.     

Teaching letter sounds to kindergarten English language learners using incremental rehearsal

Proficiency in letter–sound correspondence is important for decoding connected text. This study examined the effects of an evidence-based intervention, incremental rehearsal (IR), on the letter–sound expression of three kindergarten English language learners (ELLs) performing below the district benchmark for letter–sound fluency. Participants were native speakers of Hmong, Spanish, and Polish. A multiple-baseline design across sets of unknown letter sounds was used to evaluate the effects of IR on letter–sound expression. Visual analysis of the data showed an increase in level and trend when IR was introduced in each phase. Percentage of all non-overlapping data (PAND) ranged from 95% to 100%. All participants exceeded expected growth and reached the spring district benchmark for letter–sound fluency. Results suggest that IR is a promising intervention for increasing letter–sound expression for ELLs who evidence delays in acquiring letter sounds.     

Precursors to aggression are evident by 6 months of age

We tested the hypothesis that developmental precursors to aggression are apparent in infancy. Up to three informants rated 301 firstborn infants for early signs of anger, hitting and biting; 279 (93%) were assessed again as toddlers. Informants' ratings were validated by direct observation at both ages. The precursor behaviours were significantly associated with known risk factors for high levels of aggressiveness. Individual differences were stable from early infancy to the third year and predicted broader conduct problems. These findings suggest that some individuals set forth on the trajectory to high levels of aggression by 6 months of age. The findings have implications for developmental studies of aggression, clinical prevention and intervention strategies, and theoretical considerations regarding the detection of precursors in different domains of development.     

Political conservatism and variety‐seeking

In this research, we document and explain a counterintuitive effect of political ideology on variety-seeking. Although political conservatives have a higher desire for control, which exerts a negative effect on variety-seeking, they also have a stronger motivation to follow social norms, which exerts a positive effect on variety-seeking. Three studies demonstrate that conservatism is positively related to variety-seeking due to social normative concerns and rule out an alternative explanation of heightened self-expressive motives among conservatives. This research provides preliminary evidence of how political ideology may explain differences in product choices.     

The Group Psychotherapy Literature 1967

Abstract

This paper describes therapeutic foci for group intervention with traumatized adolescents. These include targeting the symptoms of trauma, helping members to weave a coherent, temporally ordered narrative of the event, providing psycho–education, and addressing bereavement issues and secondary adversities, all ultimately aimed at helping the adolescents proceed with development. The particular benefits of group are highlighted and clinical vignettes, drawn from the aftermath of September 11, are presented to illustrate these concepts.     

framing of prenatal screening test results and women's health-illness orientations as determinants of perceptions of fetal health and approval of amniocentesis

Abstract

Framing effects of medical test results and interactions of these effects with personal perspectives were investigated in the context of prenatal screening. Hundred and Thirty-three pregnant women undergoing the ‘triple-test’ were assessed as having health or illness orientations, and were randomly presented with reassuring/moderate/severe diagnoses framed in normal/abnormal terms, forming a 2 × 3 × 2 between subjects design. Evaluations of fetus' health and recommendations to perform amniocentesis were assessed. Findings showed healthier evaluations of the fetus and weaker recommendations to perform amniocentesis in normal versus abnormal framings. An interaction was found between framing, diagnosis, and personal orientations: women with health orientations receiving a moderate diagnosis framed in abnormal terms were significantly more inclined to recommend amniocentesis than illness-oriented women given the same diagnosis; the normal/abnormal framing of severe diagnoses yielded opposite effects on health-oriented versus illness-oriented women. The influences of framing effects and health/ illness orientations on health perceptions and behavioral intentions were discussed.     

Feeling Committed to Work: How Specific Forms of Work-Commitment Predict Work Behavior and Performance Over Time

Previous research revealed that commitment to more specific foci than the organization as a whole is better suited to predict specific employee behaviors. We extend this research by proposing and evaluating specific forms of work commitment that are applicable across a broad range of work situations: work-group, work-content, and work-results commitment. Two studies (N ₁ = 16,389; N ₂ = 482) supported the distinction between these forms of work commitment, in addition to affective and continuance organizational commitment. Corroborating our predictions, organizational commitment predicted organizational turnover intentions and actual turnover, whereas the three forms of work commitment substantially improved the prediction of self-reported (Study 1) and objective (Study 2) measures of internal mobility and job performance over time.     

Connecting the dots: Mobilizing theory to reveal the big picture in social psychology (and why we should do this)

During the past 20 years, practices in social psychology have drifted toward the publication of brief research reports as the main outlet for empirical findings, resulting in an exponential increase of the number of publications in our field. Recent developments questioning the reliability of these findings have increased the focus on (methodological) details and have prompted efforts to establish the robustness of isolated phenomena. Both types of developments carry the danger of impeding rather than promoting progress in the field. We can only build a cumulative knowledge base when we succeed in connecting these dots. Developing and examining broader theories about psychological processes and their implications can help connect different insights and elucidate their further implications in a way that can be used and understood within and beyond the boundaries of our discipline. Copyright © 2013 John Wiley & Sons, Ltd.