An Extension of SIC Predictions to the Wiener Coactive Model

The survivor interaction contrasts (SIC) is a powerful measure for distinguishing among candidate models of human information processing. One class of models to which SIC analysis can apply are the coactive, or channel summation, models of human information processing. In general, parametric forms of coactive models assume that responses are made based on the first passage time across a fixed threshold of a sum of stochastic processes. Previous work has shown that the SIC for a coactive model based on the sum of Poisson processes has a distinctive down-up-down form, with an early negative region that is smaller than the later positive region. In this note, we demonstrate that a coactive process based on the sum of two Wiener processes has the same SIC form.     

Moral judgments of the powerless and powerful in violent intergroup conflicts

The present research examined observers' moral judgments of groups in conflict. Study 1 found support for the prediction that actions are interpreted as more moral in the context of low power. People judged the violent actions of a fictitious group as more moral and justifiable when done by a smaller, less powerful country compared to a larger one. However, a second study found that violence may undermine the moral advantage accorded underdog groups. People reading about Israeli construction of settlements in Palestinian territories judged the Israeli actions to be more moral when Palestinians resisted violently compared to when they used non-violent resistance tactics. Together, these studies demonstrate how moral judgments of the actions of groups in conflict are influenced by contextual factors independent of the actions themselves.     

Severity of Children’s ADHD Symptoms and Parenting Stress: A Multiple Mediation Model of Self-Regulation

The goal of the current study was to determine the extent to which the perceived self-regulation deficits across behavioral, cognitive, and emotional domains seen in children with ADHD explain the association between the severity of ADHD symptoms and parenting stress. Participants for this study included 80 children (mean age = 10 years, 9 months) with a DSM-IV diagnosis of ADHD confirmed by a comprehensive clinical diagnostic assessment. Parents reported their own stress levels as well as the severity of their children’s ADHD symptoms, aggression, emotional lability, and executive functioning difficulties. Results indicated that the severity of children’s hyperactivity/impulsivity symptoms but not their inattention related to parenting stress. Multiple mediational analyses indicated that the association between hyperactivity/impulsivity and parenting stress was explained by children’s perceived comorbid aggression levels, emotional lability, and executive functioning difficulties. No significant differences in the strength of the mediators were found. The current study provides initial data showing that the perceived impairments in children’s self-regulation across emotional, cognitive, and behavioral domains are what parents report as stressful, not simply the severity of ADHD symptoms. Due to the cross-sectional nature of this study and shared variance from relying solely on parent report, it will be critical for future research to replicate our findings using longitudinal and multi-informant data such as teacher reports and standardized assessments.     

Portrayal of personality in Victorian novels reflects modern research findings but amplifies the significance of agreeableness

All literature embodies an implicit theory of personality and human nature (Hogan, 1976). The research described here investigates the implicit personality theory embedded in the behavior of 435 characters in 143 canonical Victorian novels. Characters were rated on the Web by 519 scholars and students of 19th-century British literature. Ratings included the characters’ goals, success in achieving goals, mate preferences and strategies, and personality according to the Five Factor Model. Results suggest that novels by Victorian authors largely reflect personality and human nature as understood by modern personality psychology, but Victorian authors amplify the significance of agreeableness and thus, whether intentionally or not, encourage cooperative impulses in readers.     

Findings for a CBT Support Group for Latina Migrant Farmworkers in Western Colorado

Despite previous research findings that suggested that migrant farmworkers are at great risk for mental health problems, no published research has evaluated mental health interventions in migrant farmworkers. The purpose of the present study was to evaluate a culturally-responsive cognitive-behavioral support group for migrant farmworker women of Mexican descent. Six participants with elevated depression and migrant farmworker stress underwent a 6-session intervention conducted in Spanish by a licensed clinical psychologist and a lay health worker (promotora). Participants completed baseline, posttreatment and 6-month followup assessments. Baseline and outcome measures included the Center for Epidemiologic Studies Depression Scale, Migrant Farmworker Stress Inventory, Personality Assessment Inventory Anxiety Scale, Beck Hopelessness Scale, and Rosenburg Self-Esteem Inventory. Wilcoxon Signed Ranks Tests indicated significant reductions in depression, anxiety, migrant farmworker stress, and hopelessness and increased self-esteem scores at posttreatment and followup. Eighty-three percent of participants achieved clinically significant pretreatment-posttreatment change and 100 % achieved clinically significant pretreatment-followup change. Our overall findings provide support for the usage of culturally-responsive support groups as an effective short-term intervention for migrant farmworkers. Our use of a promotora appeared especially helpful in decreasing stigma and promoting trust. Although our intervention shows promise, future research should evaluate the intervention in a more controlled manner.     

Mind-Wandering and Childhood ADHD: Experimental Manipulations across Laboratory and Naturalistic Settings

Research on Child and Adolescent Psychopathology - The conceptual overlap between mind-wandering and attention-deficit/hyperactivity disorder (ADHD)-related impairments is considerable, yet little...