Relationship Between Childhood Trauma and Sleep Disturbances: The Role of Perceived Stress as a Mediator

The main objective of the current study was to analyze the mediating role of perceived stress on the relationship between childhood trauma and sleep disturbances among the adult population. The sample of this cross-sectional study was composed of 987 Portuguese adults with sleep disturbances, who completed a self-administered questionnaire about childhood trauma, sleep disturbances, and perceived stress. The results of analyses found that in the model that included the variables childhood trauma and perceived stress, both variables were predictors of sleep disturbances; however, perceived stress was the strongest predictor. Regarding the model with the subtypes of maltreatment, only Emotional Abuse predicted sleep problems. Results of the Path Analysis model showed that perceived stress partly mediates the effect of childhood trauma on adult sleep disturbances. This study has clinical implications, supporting the importance of taking into account childhood trauma and perceived stress during the assessment and intervention of sleep disturbances.     

Building a multiple modality, theory-based physical activity intervention: The development of CardiACTION!

OBJECTIVES: Despite the widely acknowledged benefits of regular physical activity (PA), specific goals for increased population levels of PA, and strongly recommended strategies to promote PA, there is no evidence suggesting that the prevalence of PA is improving. If PA intervention research is to be improved, theory should be used as the basis for intervention development, participant context or environment should be considered in the process, and intervention characteristics that will heighten the likelihood of translation into practice should be implemented (e.g., ease of implementation, low human resource costs). The purpose of this paper is to describe the implementation of the aforementioned concepts within the intervention development process associated with CardiACTION an ongoing randomized 2 × 2 factorial trial. METHODS: The Ecological Model of Physical Activity integrated with Protection Motivation Theory was used to inform the design of the interventions. This integrated model was selected to allow for the development of theory-based individual, environmental, and individually + environmentally targeted physical activity interventions. All intervention strategies were matched to proposed mediators of behavior change. Strategies were then matched to the most appropriate interactive technology (i.e., interactive computer session, automated telephone counseling, and tailored mailings) delivery channel. CONCLUSIONS: The potential implications of this study include determining the independent and combined influence of individual and environment mechanisms of behavior change on intervention effectiveness. In addition, all intervention models are developed to be scalable and disseminable to a broad audience at a low cost.     

Structural invariance of multiple intelligences, based on the level of execution

The independence of multiple intelligences (MI) of Gardner's theory has been debated since its conception. This article examines whether the one- factor structure of the MI theory tested in previous studies is invariant for low and high ability students. Two hundred ninety-four children (aged 5 to 7) participated in this study. A set of Gardner's Multiple Intelligence assessment tasks based on the Spectrum Project was used. To analyze the invariance of a general dimension of intelligence, the different models of behaviours were studied in samples of participants with different performance on the Spectrum Project tasks with Multi-Group Confirmatory Factor Analysis (MGCFA). Results suggest an absence of structural invariance in Gardner's tasks. Exploratory analyses suggest a three-factor structure for individuals with higher performance levels and a two-factor structure for individuals with lower performance levels.     

Epistemic closure, skepticism and defeasibility

Those of us who have followed Fred Dretske??s lead with regard to epistemic closure and its impact on skepticism have been half-wrong for the last four decades. But those who have opposed our Dretskean stance, contextualists in particular, have been just wrong. We have been half-right. Dretske rightly claimed that epistemic status is not closed under logical implication. Unlike the Dretskean cases, the new counterexamples to closure offered here render every form of contextualist pro-closure maneuvering useless. But there is a way of going wrong under Dretske??s lead. As the paper argues, Cartesian skepticism thrives on closure failure in a way that is yet to be acknowledged in the literature. The skeptic can make do with principles which are weaker than the familiar closure principles. But I will further claim that this is only a momentary reprieve for the skeptic. As it turns out, one of the weaker principles on which a skeptical modus tollens must rest can be shown false.     

Cortisol response to behavior problems in FMR1 premutation mothers of adolescents and adults with fragile X syndrome: A diathesis-stress model

Mothers of adolescents and adults with fragile X syndrome (FXS) are faced with high levels of parenting stress. The extent to which mothers are negatively impacted by this stress, however, may be influenced by their own genetic status. The present study uses a diathesis-stress model to examine the ways in which a genetic vulnerability in mothers with the premutation of the FMR1 gene interacts with child-related environmental stress to predict their morning cortisol levels. Seventy-six mothers of an adolescent or adult with FXS participated in an 8-day telephone diary study in which they reported on the behavior problems of their son or daughter with FXS each day. We analyzed salivary cortisol collected from mothers at awakening and 30 minutes after awakening on 4 of these days. The results indicated that mothers with greater genetic vulnerability had a lower level of cortisol on mornings following days when their son or daughter with FXS manifested more episodes of behavior problems, whereas mothers with less genetic risk evinced the opposite pattern of higher morning cortisol in response to their child's behavior problems. This finding contributes to our understanding of gene-by-environment interactions and highlights the importance of interventions to alleviate parenting stress in mothers raising children with FXS.     

Proneness for psychological flow in everyday life: Associations with personality and intelligence

Flow is an experience of enjoyment, concentration, and low self-awareness that occurs during active task performance. We investigated associations between the tendency to experience flow (flow proneness), Big Five personality traits and intelligence in two samples. We hypothesized a negative relation between flow proneness and neuroticism, since negative affect could interfere with the affective component of flow. Secondly, since sustained attention is a component of flow, we tested whether flow proneness is positively related to intelligence. Sample 1 included 137 individuals who completed tests for flow proneness, intelligence, and Big Five personality. In Sample 2 (all twins; n = 2539), flow proneness and intelligence, but not personality, were measured. As hypothesized, we found a negative correlation between flow proneness and neuroticism in Sample 1. Additional exploratory analyses revealed a positive association between flow proneness and conscientiousness. There was no correlation between flow proneness and intelligence. Although significant for some comparisons, associations between intelligence and flow proneness were also very weak in Sample 2. We conclude that flow proneness is associated with personality rather than intelligence, and discuss that flow may be a state of effortless attention that relies on different mechanisms from those involved in attention during mental effort.     

Development of the Connectedness to Treatment Setting Scale for Children with Cancer and Their Parents

Treatment for pediatric cancer requires periodic and long hospital admissions. The intensity and frequency of the interactions taking place in the treatment setting indicate that this is a context to which children and their families can feel connected. This study’s main goal was to develop the Connectedness to Treatment Setting Scale (CTSS-Pediatric Cancer), a 10-item scale assessing children’s and parents’ connectedness to the health setting where children receive cancer treatment. Participants were 128 dyads of children receiving treatment at two Portuguese public hospitals and their parents. Two exploratory factor analyses with children’s and parents’ data separately and a dyadic confirmatory factor analysis with the whole sample supported a second-order factorial structure of the CTSS-Pediatric Cancer, where three dimensions (Sense of Belonging, Comfort and Emotional Care) loaded onto a total score of connectedness. Findings suggest that the CTSS-Pediatric Cancer is a valid and useful assessment measure.     

Met expectations: The effects of expected and delivered inducements on employee satisfaction

Interpretation of existing theory and research on met expectations is problematic due to ambiguous conceptualization of the met expectations hypothesis and limitations imposed by the measurement strategies typically employed in this domain (i.e. difference scores and direct retrospective measures). In this longitudinal study, we sought to overcome these problems by using an alternative methodology to conduct a more comprehensive test of the met expectations hypothesis based on Warr's (1987) Vitamin Model and on research in related fields (e.g. person–environment fit). Polynomial regression and response surface analyses were used to examine how employee satisfaction is related to unmet, met, and exceeded expectations concerning two distinct types of inducements analogous to vitamins A (skill development opportunities) and E (support, compensation). Respondents included 342 limited term employees. Consistent with previous research, our results indicated that unmet expectations of any sort were associated with decreased satisfaction. However, contrary to common interpretations of the extant literature, our results also indicated that met expectations were not always associated with high levels of satisfaction and that exceeded expectations were, in the case of skill development, negatively associated with satisfaction. These findings suggest a need to broaden existing met expectations theory and to refine common organizational practices.     

Revised Child Anxiety and Depression Scale: a Psychometric Examination in Chinese Youth

There remains a need for a disorder-specific inventory of children’s depression and anxiety that can reliably screen anxious and depressive disorder symptomatology in Chinese children. The Revised Child and Anxiety Depression Scale (RCADS) is a self-report questionnaire assessing anxiety and depression in children (Chorpita et al., 2000; Piqueras et al., 2017). This study sought to evaluate its psychometric properties in a Mainland Chinese sample. Students from the 4th to 11th grades (N?=?1001) participated in this study. Each of the RCADS subscales, by age and sex, possessed reliability coefficients ranging between .63 and .81. Means and standard deviations for RCADS subscales calculated for the age and sex sub-samples were reported. Participants reported slightly lower levels on five subscales than for Chorpita et al. (2000) normative sample. The scales were significantly and strongly correlated with the Child Behavior Checklist (CBCL) subscales (somatic, withdrawal, anxiety) as well as CBCL internalizing scores. Fit statistics suggested marginal to adequate fit for the six-factor model for the Chinese youth. The present study provides foundational support for the psychometric properties of the RCADS in a large sample of Chinese youth yet indicates that factor structure might be improved through enhanced sampling of culturally relevant symptom expressions.

     

Effects of Displacement and Trajectory Length on the Variability Pattern of Reaching Movements

The design of the present study enabled the authors to distinguish between the possible effects of movement displacement and trajectory length on the pattern of final positions of planar reaching movements. With their eyes closed, 9 subjects performed series of fast and accurate movements from different initial positions to the same target. For some series, the movements were unconstrained and were therefore performed along an approximately straight vertical line. For other series, an obstacle was positioned so that trajectory length was increased because of an increase in movement curvature. Ellipses of variability obtained by means of principal component analysis applied to the scatter of movement final positions enabled the authors to assess the pattern of movement variable errors. The results showed that the orientation of the ellipses was not affected by movement displacement or by trajectory length, whereas variable errors increased with movement displacement. An increase in trajectory length as a consequence of increased curvature caused no change in variable error. From the perspective of current motor control theory, that finding was quite unexpected. Further studies are required so that one can distinguish among the possible effects of various kinematics, kinetics, and other variables that could affect the pattern of variable errors of reaching movements.