On effect size

The call for researchers to report and interpret effect sizes and their corresponding confidence intervals has never been stronger. However, there is confusion in the literature on the definition of effect size, and consequently the term is used inconsistently. We propose a definition for effect size, discuss 3 facets of effect size (dimension, measure/index, and value), outline 10 corollaries that follow from our definition, and review ideal qualities of effect sizes. Our definition of effect size is general and subsumes many existing definitions of effect size. We define effect size as a quantitative reflection of the magnitude of some phenomenon that is used for the purpose of addressing a question of interest. Our definition of effect size is purposely more inclusive than the way many have defined and conceptualized effect size, and it is unique with regard to linking effect size to a question of interest. Additionally, we review some important developments in the effect size literature and discuss the importance of accompanying an effect size with an interval estimate that acknowledges the uncertainty with which the population value of the effect size has been estimated. We hope that this article will facilitate discussion and improve the practice of reporting and interpreting effect sizes.     

Cortisol Response Following Exposure Treatment for PTSD in Rape Victims

This study examined changes in salivary cortisol levels pre- to posttreatment in adult female rape victims diagnosed with posttraumatic stress disorder (PTSD) randomly assigned to be treated with either prolonged exposure therapy or eye movement desensitization and reprocessing. Salivary cortisol was collected at baseline, Session 3, and Session 9. A significant decrease in salivary cortisol levels was observed in individuals classified as treatment responders in both treatment conditions. Findings suggest that successful exposure-based treatments for PTSD that result in trauma-related and depressive symptom reduction may impact the action of the hypothalamic–pituitary–adrenal axis as measured by changes in level of salivary cortisol from pre- to posttreatment.     

Aging,imagery, and the bizarreness effect

ABSTRACT

This study examined the bizarre imagery effect in young and older adults, under incidental and intentional conditions. Intentionality was manipulated across experiments, with participants receiving an incidental free recall test in Experiment 1 and an intentional test in Experiment 2. This study also examined the relation between working memory resources and the bizarreness effect. In Experiment 1 young and older adults were presented with common and bizarre sentences; they later received an incidental recall test. There were no age differences in sensitivity to the bizarreness effect in Experiment 1 when ANOVAs were used to analyze the data. However, when the bizarreness effect was examined in terms of effect size, there was evidence that younger adults produced larger bizarreness effect sizes than younger adults. Experiment 2 further explored age differences in sensitivity to the bizarreness effect by presenting young and older adults with bizarre and common sentences under intentional learning conditions. Experiment 2 failed to yield age differences as a function of item type (bizarre vs. common). In addition, Experiment 2 failed to yield significant evidence that the bizarreness effect is modulated by working memory resources. The results of this study are most consistent with the distinctiveness account of the bizarreness effect.     

Abuse in Childhood and Religious/Spiritual Status in Adulthood Among Internal Medicine Outpatients

The relationship between abuse in childhood and religiosity/spirituality status in adulthood has been previously studied, but not in a medical sample or with the current study measure. Using a cross-sectional consecutive sample of 317 internal medicine outpatients, we asked participants, “As a child, were you the victim of either physical or sexual abuse?,” and assessed religiosity/spirituality status with the Functional Assessment of Chronic Illness Therapy-Spiritual Well-Being Scale (FACIT-Sp-12). We found that among the cohort with abuse in childhood, seven of twelve scales as well as the overall FACIT-Sp-12 score demonstrated statistically significant differences, with abused participants consistently evidencing lower religiosity/spirituality scores.     

Profiles of Naturalistic Attentional Trajectories Associated with Internalizing Behaviors in School-Age Children: A Mobile Eye Tracking Study

Research on Child and Adolescent Psychopathology - The temperament profile Behavioral Inhibition (BI) is a strong predictor of internalizing behaviors in childhood. Patterns of attention towards or...     

The Development and Initial Validation of the Adult Coping Inventory

There are few psychometrically sound measures of coping in adults. Widely used measures of coping have highly unstable sub-scale analyses, were developed on homogenous samples, and are outdated. The scarcity of empirically derived instruments is concerning given that coping skills are linked to a variety of positive and negative physical and mental health outcomes (e.g., substance use, depression). Thus, the aim of the current study was to develop a psychometrically sound measure of coping in adults: the Adult Coping Inventory (ACI). The study consisted of three phases: The aim of Phase 1 was to generate an initial item pool. After eliminating redundant items, 124 items remained. The purpose of Phase 2 was to eliminate items based on item frequency and factor loadings. A diverse sample of 526 adults participated in the study. Following item generation and elimination, an exploratory factor analysis produced a 57-item, five-factor model of coping which included the following subscales: Problem Solving, Mindfulness, Maladaptive Coping, Social Support, and Avoidance. Overall, reliability of the ACI was excellent and the internal consistency of the factors ranged from adequate to excellent. Evidence of convergent, concurrent, and incremental validity of the questionnaire was also established. Results provide initial support for the psychometric properties of the ACI.

     

The Influence of Race and Income on Community Mothers’ Acceptance of Child Management Methods

The consideration of diverse family factors on parents’ acceptance of behavioral parent training (BPT) components aids in the development and delivery of culturally sensitive parenting programs. Perceptions of acceptability are particularly important to investigate among low-income and racial-minority families, as they are less likely to engage in nonadapted BPT programs. Therefore, the current study examines the synergistic effects of race and income on mothers’ acceptance of five common child management methods relevant to BPT. The relationship between mothers’ acceptability ratings and self-reported parenting practices was also explored. Participants were 106 White and Black mothers from different income levels who completed measures related to the acceptability of response cost, positive reinforcement, time-out, spanking, and medication. The results indicated that mothers from varying backgrounds differed in their acceptance of child management methods, particularly with regard to corporal punishment. Additionally, a relationship was found between parents’ acceptability ratings and their self-reported parenting behavior. The findings support the consideration of parents’ perceptions of child discipline methods when recommending and delivering BPT programs to diverse parents.     

INTEGRAL MEDICINE AND HEALTH

Integral Science provides the empirical rigor needed to shift medicine's worldview. The shift in science will give rise to Integral Medicine, which will emerge from the integration and transformational change of biomedicine, psychosocial approaches, Complementary and Alternative Medicine, and other reform movements. The root metaphor of Integral Medicine is a healthy and sustainable ecosystem. At its heart are mind–body holism and collaborative learning. Healing and the creation of health will emphasize educational, self-care, and community support models. Implications are discussed for practice, research, and education.     

Daily Behavior Report Cards with and without Home-Based Consequences: Improving Classroom Behavior in Low Income,African American Children with ADHD

Daily Behavior Report Cards (DBRC), which typically require teachers to evaluate students' daily behavior and parents to provide contingent consequences, are an effective and acceptable method for improving children's classroom behavior. The current study evaluated whether parent involvement is an essential treatment component or whether teacher feedback alone would be sufficient to produce children's behavior changes. The effectiveness of DBRC with teacher feedback to students and parent delivered consequences (PC) was compared to teacher feedback to students only (no parent delivered consequences, NPC) for increasing appropriate classroom behavior and academic productivity in African American, low income, elementary school children with Attention-Deficit/Hyperactivity Disorder (ADHD). Both treatments led to increased on-task behavior, although PC was superior to NPC. Academic productivity outcomes are less clear. Treatment implications and future directions for research on teacher feedback interventions are discussed.