Brief assessment of schizotypy: Developing short forms of the Wisconsin Schizotypy Scales

The Wisconsin Schizotypy Scales—the Perceptual Aberration, Magical Ideation, Physical Anhedonia, and Revised Social Anhedonia Scales—have been used extensively since their development in the 1970s and 1980s. Based on psychometric analyses using item response theory, the present work presents 15-item short forms of each scale. In addition to being briefer, the short forms omit items with high differential item functioning. Based on data from a sample of young adults (n = 1144), the short forms have strong internal consistency, and they mirror effects found for the longer scales. They thus appear to be a good option for researchers interested in the brief assessment of schizotypic traits. The items are listed in an Appendix A.     

Science undergraduates’ and graduates’ epistemologies of science: the notion of interpretive frameworks

First-year science (biology, chemistry, physics) undergraduates’ and advanced graduate students’ understanding of the scientific research process was assessed using two clinical interviews: the “Nature of Science Interview” (International Journal of Science Education 11 (1989) 514; Cognition and Instruction 18 (2000) 349) and the “Nature Nurture Interview” (Paper presented at the Annual Meeting of the American Educational Research Association, San Francisco, 1992) which offered a context (a fictitious conflict of a nature and a nurture theorist about the causes of nervousness in dogs). The participants’ answers were then subjected to a categorical analysis using a coding scheme that progresses from an undifferentiated understanding of science as action (Level 1) to an understanding of science as an iterative process of theory formation, testing, and revision with increasing depth of explanation (Level 5). Results indicate that neither group had a clear understanding of the necessity of framework theories for the scientific research process. While no clear developmental progression was found, differences between students majoring in different fields emerged.     

Lack of coherence and divergent thinking: Two sides of the same coin in artistic talent?

The aim of this study was to identify some of the underlying cognitive components of artistic talent. The participants in this study were an artistically gifted group of young adults, and a group of controls with no such talent but matched on intelligence. Two components were investigated, one was a preference for local over global processing and others were measures of divergent thinking. The results supported the hypothesis that talented artists might, in contrast to others, show a distinctive cognitive style which may be linked to divergent thinking.     

Lack of coherence and divergent thinking: Two sides of the same coin in artistic talent?

The aim of this study was to identify some of the underlying cognitive components of artistic talent. The participants in this study were an artistically gifted group of young adults, and a group of controls with no such talent but matched on intelligence. Two components were investigated, one was a preference for local over global processing and others were measures of divergent thinking. The results supported the hypothesis that talented artists might, in contrast to others, show a distinctive cognitive style which may be linked to divergent thinking.     

Are the states underlying implicit biases unconscious? – A Neo-Freudian answer

Many philosophers as well as psychologists hold that implicit biases are due to unconscious attitudes. The justification for this unconscious-claim seems to be an inference to the best explanation of the mismatch between explicit and implicit attitudes, which is characteristic of implicit biases. The unconscious-claim has recently come under attack based on its inconsistency with empirical data. Instead, Gawronski, Hoffman, and Wilbur (2006) analyze implicit biases based on the so-called Associative-Propositional Evaluation (APE) model, according to which implicit attitudes are phenomenally conscious and accessible. The mismatch between the explicit and the implicit attitude is explained by the Cognitive Inconsistency Approach (CIA) (as I will call it): implicit attitudes are conscious but rejected as basis for explicit judgments because the latter lead to cognitive inconsistency with respect to other beliefs held by the subject. In this paper, I will argue that the CIA is problematic since it cannot account for the fact that implicit attitudes underlying implicit biases typically are unconscious. I will argue that a better explanation of the attitude-mismatch can be given in terms of a Neo-Freudian account of repression. I will develop such an account, and I will show how it can accommodate the merits of the APE model while avoiding the problems of the CIA.     

The structure of prejudice: associative strength as a determinant of stereotype endorsement

Previous research obtained inconsistent findings as to whether implicit and explicit measures of prejudice are related. According to our view, some of these inconsistencies are due to whether implicit measures assess exclusively the strength of association between the social category and the evaluation or the activation of the social category in addition. Derived from recent theorizing we suggest that it is especially associative strength between the social category and its evaluation that determines the endorsement of prejudice assessed in explicit measures. To test this assumption we used the Implicit Association Test (IAT) to assess the associative strength of German students' prejudice towards Turkish people and the Blatant‐and‐Subtle‐Prejudice‐Scale (BS scale) as an explicit measure of prejudice. We obtained evidence for prejudice at a relative level in that the category of Turks was more closely associated with a negative evaluation and the category of Germans more closely associated with a positive evaluation. In line with our assumptions the implicit measure was correlated with the explicit measure in that the stronger the representation of Turks was associated with a negative evaluation the more prejudiced individuals responded in the explicit prejudice measure. Using a trait assignment technique, we found that neither associative strength nor the endorsement of the prejudice in the explicit measure were related to the contents of the stereotype. Copyright © 2001 John Wiley & Sons, Ltd.     

The curiosity and exploration inventory-II: Development, factor structure, and psychometrics

Given curiosity’s fundamental role in motivation, learning, and well-being, we sought to refine the measurement of trait curiosity with an improved version of the Curiosity and Exploration Inventory (CEI; [Kashdan, T. B., Rose, P., & Fincham, F. D. (2004). Curiosity and exploration: Facilitating positive subjective experiences and personal growth opportunities. Journal of Personality Assessment, 82, 291–305]). A preliminary pool of 36 items was administered to 311 undergraduate students, who also completed measures of emotion, emotion regulation, personality, and well-being. Factor analyses indicated a two-factor model—motivation to seek out knowledge and new experiences (Stretching; five items) and a willingness to embrace the novel, uncertain, and unpredictable nature of everyday life (Embracing; five items). In two additional samples (ns = 150 and 119), we cross-validated this factor structure and provided initial evidence for construct validity. This includes positive correlations with personal growth, openness to experience, autonomy, purpose in life, self-acceptance, psychological flexibility, positive affect, and positive social relations, among others. Applying item response theory (IRT) to these samples (n = 578), we showed that the items have good discrimination and a desirable breadth of difficulty. The item information functions and test information function were centered near zero, indicating that the scale assesses the mid-range of the latent curiosity trait most reliably. The findings thus far provide good evidence for the psychometric properties of the 10-item CEI-II.     

Differential effects of social and non‐social reward on response inhibition in children and adolescents

An important issue in the field of clinical and developmental psychopathology is whether cognitive control processes, such as response inhibition, can be specifically enhanced by motivation. To determine whether non‐social (i.e. monetary) and social (i.e. positive facial expressions) rewards are able to differentially improve response inhibition accuracy in typically developing children and adolescents, an ‘incentive’ go/no‐go task was applied with reward contingencies for successful inhibition. In addition, the impact of children's personality traits (such as reward seeking and empathy) on monetary and social reward responsiveness was assessed in 65 boys, ages 8 to 12 years. All subjects were tested twice: At baseline, inhibitory control was assessed without reward, and then subjects were pseudorandomly assigned to one of four experimental conditions, including (1) social reward only, (2) monetary reward only, (3) mixed social and monetary reward, or (4) a retest condition without reward. Both social and non‐social reward significantly improved task performance, although larger effects were observed for monetary reward. The higher the children scored on reward seeking scales, the larger was their improvement in response inhibition, but only if monetary reward was used. In addition, there was a tendency for an association between empathic skills and benefits from social reward. These data suggest that social incentives do not have an equally strong reinforcing value as compared to financial incentives. However, different personality traits seem to determine to what extent a child profits from different types of reward. Clinical implications regarding probable hyposensitivity to social reward in subjects with autism and dysregulated reward‐seeking behaviour in children with attention‐deficit/hyperactivity disorder (ADHD) are discussed.     

Participation restrictions at work indicate participation restrictions in other domains of life

Health problems are often associated with activity limitations and participation restrictions, as defined in the International Classification of Functioning, Disability and Health (ICF). This often affects the workplace in the form of sick leave or a reduction in productivity. The question is, "to what extent are participation restrictions at work related to participation restrictions in other domains of life?" A total of 382 primary health care patients (aged 18-65) were asked to provide information on their employment status, perceived health-related workplace problems and sick leave status. Health-dependent participation restrictions across different domains of life were assessed using the Index for Measuring Participation Restrictions (IMET) self rating questionnaire. Currently unemployed patients reported significantly higher degrees of participation restrictions across all domains of life than the employed participants. Employed patients with workplace problems scored higher than patients without workplace problems. The domain of work encompassed the highest level of impairment, while the lowest was observed in personal relationships. Workplace problems occur frequently for primary health care patients. They coincide with participation restrictions in other domains of life. For patients who complain about their capacity to work, diagnosis and treatment must not only focus on the work domain, but also enquire into and consider participation restrictions in other domains of life.