Participation and Attrition in a Coping Skills Intervention for Adolescent Girls with Inflammatory Bowel Disease

The current study examined factors associated with adolescent and parent participation in a coping skills intervention for adolescent girls with inflammatory bowel disease (IBD) and examined factors associated with attrition related to intermittent missing data. Thirty-one adolescent girls with IBD and their parents enrolled in the intervention. Psychosocial and disease factors related to participation in the 6-week web component of the coping skills intervention were examined as were baseline group differences between those who provided post-treatment data and those who did not. Adolescents experiencing more difficulties related to their disease and psychosocial functioning participated less in the web component of the treatment intervention. Families who attrited had higher baseline levels of parental catastrophic thoughts, parenting stress, and adolescent depression. Families experiencing greater levels of psychological and disease-related difficulties may be at risk for low participation and eventual dropout from pediatric IBD psychological treatment interventions.     

Psychology in Academic Health Centers: A True Healthcare Home

This article is based on the invited presentation by the author at the American Psychological Association??s Annual Convention, August 4?C7, 2011, upon his receipt of the Joseph D. Matarazzo Award for Distinguished Contributions to Psychology in Academic Health Centers presented by the Association of Psychologists in Academic Health Centers. This article relates the history, roles, and responsibilities of psychologists in academic health centers to the ultimate survival and success of professional psychology. It describes implications of the Patient Protection and Affordable Care Act (ACA) on the institutional practice of psychology including how psychology??s place in academic health centers positions the field well for the future of healthcare reform. The article provides several recommendations to help professional psychology prepare for that future of integrated, interprofessional healthcare.     

Family Factors in the Development and Management of Anxiety Disorders

Family variables are thought to play a key role in a wide variety of psychopathology according to many theories. Yet, specific models of the development of anxiety disorders place little emphasis on general family factors despite clear evidence that anxiety runs in families. The current review examines evidence for the involvement of a number of family-related variables in the development of anxiety disorders as well as the importance of families in their management. Evidence across most areas is shown to be weak and inconsistent, with the one exception being an extensive literature on the role of parenting in the development of anxiety. There is also currently little evidence that family factors have a strong role to play in the treatment of anxiety, aside from research demonstrating the value of parents and partners as non-critical supports in therapy. The promises and hints in the literature, combined with the currently inconsistent methods, suggest that considerably more research is needed to determine whether specific family factors may yet be shown to play a key role in the development and management of anxiety disorders.     

A 15-year longitudinal test of the theory of planned behaviour to predict physical activity in a randomized national sample of Canadian adults

BackgroundThere have been very limited long-term prospective studies examining social-cognitive models in the PA domain with large, representative population samples.ObjectiveThe primary objective was to examine the Theory of Planned Behaviour's (TPB) ability to explain PA behaviour in a randomly selected national sample of Canadian adults over a 15-year period. A secondary objective was to test the moderating effects of gender on TPB.DesignThe study employed a longitudinal design.MethodsA cohort of 1427 randomly-selected adults reported TPB constructs and PA behaviour in 1988, and again in 2003. Structural equation modelling techniques were employed to test TPB.ResultsThe full model including both 1988 and 2003 TPB measures accounted for 29% and 21% of the variance in intention, and 9% and 22% of the variance in PA in 1988 and 2003, respectively. Gender moderated aspects of the TPB in the full model. The core predictive model (1988 TPB constructs predicting 2003 PA behaviour) explained 13% of the variance in 2003 PA behaviour.ConclusionsThe TPB's long-term ability to predict PA behaviour is modest.     

Explaining the justice-performance relationship: trust as exchange deepener or trust as uncertainty reducer?

Past research has revealed significant relationships between organizational justice dimensions and job performance, and trust is thought to be one mediator of those relationships. However, trust has been positioned in justice theorizing in 2 different ways, either as an indicator of the depth of an exchange relationship or as a variable that reflects levels of work-related uncertainty. Moreover, trust scholars distinguish between multiple forms of trust, including affect- and cognition-based trust, and it remains unclear which form is most relevant to justice effects. To explore these issues, we built and tested a more comprehensive model of trust mediation in which procedural, interpersonal, and distributive justice predicted affect- and cognition-based trust, with those trust forms predicting both exchange- and uncertainty-based mechanisms. The results of a field study in a hospital system revealed that the trust variables did indeed mediate the relationships between the organizational justice dimensions and job performance, with affect-based trust driving exchange-based mediation and cognition-based trust driving uncertainty-based mediation.     

Contraction intensity and velocity on vastus lateralis SEMG power spectrum and amplitude

Effect of contraction intensity [100%, 75%, 50%, and 25% maximum voluntary contraction (MVC)] and movement velocity [0 degrees (isometric)], 50 degrees, 100 degrees, 200 degrees, and 400 degrees/sec. [isovelocities]) on root mean square amplitude (SEMG-RMS) and median frequency power spectrum (SEMG-MNF) of vastus lateralis (VL) surface electromyography was investigated with ten healthy female university students. Peak torque (PT), mean torque (MT), SEMG-MNF, and SEMG-RMS, analyzed using separate repeated-measures analyses of variance (p < or = .05), indicated: (1) an inverse relation between PT and MT and movement velocity, (2) greater SEMG-MNF values during all isovelocity conditions compared with isometric conditions, with highest values occurring at 50 degrees /sec. and at 100% and 75% MVC, and (3) at all contraction intensities SEMG-RMS values were higher during dynamic movements than isometric movements and highest at 200 degrees /sec. Isovelocity contractions were inferred to facilitate a greater recruitment of fast-twitch fibers (via increased SEMG-MNF), which was intensified at 50 degrees /sec., whereas greater overall muscle activation was found at 200 degrees /sec.     

From racial discrimination to risky sex: prospective relations involving peers and parents

This study investigated how early experience with racial discrimination affected the subsequent risky sexual behaviors of a diverse sample of African American youths (N = 745). The analyses focused on 3 risk-promoting factors thought to mediate the hypothesized discrimination → risky sex relation: negative affect, affiliation with deviant peers, and favorable attitudes toward risky sex. In addition, attentive parenting was examined as a protective factor. Analyses using structural equation modeling revealed that youths who perceived more racial discrimination at age 10 or 11 were engaging in more sexual risk taking at age 18 or 19. This relation was mediated by the hypothesized risk-promoting factors via pathways that were consistent with our conceptual model. Results also indicated a prospective reciprocal relation between parenting and children's deviant affiliations: deviant peer affiliations at age 10 or 11 predicted more attentive parenting behaviors by the parents; this response from the parents, in turn, predicted relatively fewer deviant affiliations when the youths were 15 or 16. Study findings are discussed in terms of their relevance to the disproportionately high rates of sexually transmitted infections among African Americans.     

It's in the sample: the effects of sample size and sample diversity on the breadth of inductive generalization

Developmental studies have provided mixed evidence with regard to the question of whether children consider sample size and sample diversity in their inductive generalizations. Results from four experiments with 105 undergraduates, 105 school-age children (M = 7.2 years), and 105 preschoolers (M = 4.9 years) showed that preschoolers made a higher rate of projections from large samples than from small samples when samples were diverse (Experiments 1 and 3) but not when samples were homogeneous (Experiment 4) and not when the task required a choice between two samples (Experiment 2). Furthermore, when a property occurred in large and diverse samples, preschoolers exhibited a broad pattern of projection, generalizing the property to items from categories not represented in the evidence. In contrast, adults followed a normative pattern of induction and never attributed properties to items from categories not represented in the evidence. School-age children showed a mixed pattern of results.     

What is more important for national well-being: money or autonomy? A meta-analysis of well-being, burnout, and anxiety across 63 societies

What is more important: to provide citizens with more money or with more autonomy for their subjective well-being? In the current meta-analysis, the authors examined national levels of well-being on the basis of lack of psychological health, anxiety, and stress measures. Data are available for 63 countries, with a total sample of 420,599 individuals. Using a 3-level variance-known model, the authors found that individualism was a consistently better predictor than wealth, after controlling for measurement, sample, and temporal variations. Despite some emerging nonlinear trends and interactions between wealth and individualism, the overall pattern strongly suggests that greater individualism is consistently associated with more well-being. Wealth may influence well-being only via its effect on individualism. Implications of the findings for well-being research and applications are outlined.