Lunar Lies: The Impact of Informational Framing and Individual Differences in Shaping Conspiracist Beliefs About the Moon Landings

Two studies examined the role of informational framing and individual differences on acceptance of the moon landings conspiracy theory (CT). In Study 1, participants were randomly assigned to one of three experimental groups in which they were exposed to different forms of information about the moon landings CT. Results showed that information critical of the moon landings CT resulted in attenuated conspiracist beliefs and that information supportive of the CT resulted in stronger conspiracist beliefs. In addition, stronger belief in the moon landings CT was associated with participants' belief in other CTs and openness to experience. In Study 2, participants completed a survey measuring their belief in the moon landings CT and a range of individual difference factors. Results showed that acceptance of the moon landings CT was associated with the adoption of a conspiracist worldview and schizotypal tendencies. Possibilities for conceptualizing the functional roles played by CTs are discussed. Copyright © 2012 John Wiley & Sons, Ltd.     

Kognitive Verhaltenstherapie bei schizophrenen Psychosen

Cognitive behavioral therapy (CBT) can be regarded as an established intervention for the treatment of patients with schizophrenia. Based on randomized clinical trials and meta-analyses, which found evidence for the efficacy of CBT, almost all evidence-based treatment guidelines recommend CBT for routine treatment. This paper demonstrates that in psychoses CBT is a disorder-specific adaptation of general principles of CBT for the treatment of patients suffering from schizophrenia. The CBT procedure draws on cognitive models of symptoms for the identification of treatment targets and focuses on everyday problems of patients by implementing a self-management approach. Fostering motivation and the application of behavioral and cognitive treatment strategies characterize this approach. If the patients live in a family, other family members should be involved in order to improve crisis management and problem solving within the family. A major challenge for the future is to improve the availability of CBT under the German conditions of routine mental health care.     

The Severity of Childhood Abuse and Neglect in Relationship to Post-Traumatic Stress Disorder Among Female Sex Workers in the Netherlands

In this article, the relationship between childhood abuse and neglect and post-traumatic stress disorder (PTSD) in adulthood is examined in a sample of 123 female indoor sex workers in the Netherlands. It was hypothesized that the severity of childhood abuse and neglect is associated with the severity of PTSD. In this study, a substantial number of sex workers had experienced abuse, neglect, or both during childhood. Furthermore, a substantial number suffered from PTSD. Results show significant differences between sex workers suffering from PTSD and sex workers not suffering from PTSD, in the extent to which they have experienced abuse or neglect. Logistic regression analysis shows emotional abuse contributes significantly to the prediction of PTSD. Our findings suggest that the high rate of PTSD among sex workers might be partially related to childhood experiences, indicating that a number of sex workers might be traumatized before entering sex work.     

The State-Trait Depression Scales: An International Comparison

Equivalent English and German versions of the State-Trait Depression Scales (STDS) were developed and presented to samples of American and German students who were comparable with regard to gender and age. Factorial structure and equivalence of the two versions were determined by confirmatory factor analyses (CFA). The CFAs included multiple group analyses which were employed to compare factor patterns, loadings, factor variances and covariances across the two samples. In addition, statistical and psychometric properties of the items and scales were determined and mean differences between nationalities and genders on these scales were tested. In order to obtain information about the external validity, relationships between the STDS and tests which already exist in English and German (several depression scales as well as the State-Trait Personality Inventory, the State-Trait Anger Expression Inventory, and the Mainz Coping Inventory) were analysed.     

Are boycott motives rationalizations?

Previous models of boycott motivation are incomplete because they only consider beliefs and attitudes. This article argues that consumers' proximity to the consequences of the critical actions of a company is the primary trigger of the desire to boycott. As consumers need to justify this desire, they search for supportive arguments. Thus, the arguments consumers give to explain why they are boycotting or not are pre‐decisional rationalizations rather than independent rational considerations. Consequently, the paper suggests that scholars need to respecify the antecedents identified in prior studies. These constructs are mediator variables of the indirect influence of proximity on boycott participation. The paper tests the assumptions on the basis of survey data gathered from 544 consumers using the example of a real boycott that was called in response to factory relocation. The model proposed was tested by means of partial least squares regression analysis. The mediation hypotheses were examined using simple and multiple mediation tests. The empirical study confirms that boycott motives are mainly rationalizations of a pre‐existing desire to boycott, which is contingent on proximity. Managerial implications and avenues for further research are proposed. Copyright © 2013 John Wiley & Sons, Ltd.     

Training Motor Sequences: Effects of Speed and Accuracy Instructions

Participants practiced a fixed 3- and a fixed 6-key press sequence for 144 times each. In the speed group, they were instructed to execute their sequences fast without bothering much about errors while the accurate group was instructed to be careful and prevent errors. In the test phase, participants executed series of 3 and 6 responses (a) when all element-specific stimuli were displayed in the familiar order, (b) in response to just the familiar first stimulus, and (c) by responding to random stimuli. The speed instruction yielded stronger sequencing skill while the accuracy instruction developed stronger reaction skill.     

The Efficacy of Systemic Therapy for Childhood and Adolescent Externalizing Disorders: A Systematic Review of 47 RCT

Systemic (family) therapy is a widely used psychotherapy approach. However, most systematic efficacy reviews have focused solely on “family‐based treatment” rather than on the theoretic orientation “systemic therapy.” We systematically review trials on the efficacy of systemic therapy for the treatment of childhood and adolescent externalizing disorders. All randomized (or matched) controlled trials (RCT) evaluating systemic/systems‐oriented therapy in various forms (family, individual, group, multi‐family group therapy) with child or adolescent index patients (0–17 years) suffering from mental disorders were identified by data base searches and cross‐references. Inclusion criteria were as follows: index patient diagnosed with a DSM‐ or ICD‐listed mental disorder, and trial published in any language up to the end of 2011. The RCTs were analyzed for their research methodology, interventions applied, and results (postintervention; follow‐up). A total of 47 trials from the United States, Europe, and China, published in English, German, and Mandarin, were identified. A total of 42 of them showed systemic therapy to be efficacious for the treatment of attention deficit hyperactivity disorders, conduct disorders, and substance use disorders. Results were stable across follow‐up periods of up to 14 years. There is a sound evidence base for the efficacy of systemic therapy for children and adolescents (and their families) diagnosed with externalizing disorders.     

Cultural Influences on Number Preferences: Christmas and Grading Systems

People consistently prefer numbers associated with themselves (e.g., birth dates) over other numbers. We argue that such number preferences are also shaped by cultural influences, such as customs regarding the day on which Christmas is celebrated and customs regarding ranking of numerals used in national school’s grading system. Across 6 different countries (N = 657), the day on which Christmas is celebrated had an influence on the preference for the numbers 24 vs. 25, and numbers used for better grades were uniformly rated better than numbers used for poorer grades. If grading did not involve numbers (e.g., letters A to F), then no effect appeared.

     

Gender differences in the mean level,variability, and profile shape of student achievement: Results from 41 countries

A domain-specific hierarchical conceptualization of mathematics achievement can be represented by the standard psychometric model in which a single latent dimension accounts for observed individual differences in scores on the respective subdomains (e.g., quantity). Alternatively, a fully hierarchical conceptualization of achievement can be represented by a nested-factor model in which individual differences in subdomain-specific scores are explained by both general student achievement and specific mathematics achievement. The authors applied both models to study the gender similarity hypothesis, the greater male variability hypothesis, and the masking hypothesis, which predicts that gender differences in general student achievement mask gender differences in both the means and the variability of specific mathematics achievement. Representative data were obtained from 275,369 15-year-old students in 41 countries. The results supported these hypotheses in most countries, demonstrating that a fully hierarchical conceptualization of achievement in terms of the nested-factor model significantly contributes to a better understanding of gender differences in the mean level, variability, and shape of students' achievement profiles.