On the Explanation of the Hostile Attributional Bias: Traumatic Experiences,Schemas, and Migrant Status

Aggressive individuals often exhibit a hostile attributional bias (HAB). To examine why some people exhibit the HAB to a higher degree than others, we tested the hypothesis put forth by Dodge (2006). Dodge hypothesized HAB results from traumatic experiences and this relation is mediated by schemas. This hypothesis was tested among 135 Dutch and migrant participants. Among Dutch participants, traumatic experiences were not related to the HAB but were related to schemas. However, among migrants, traumatic experiences were related both to the HAB and schemas, but schemas were not related to the HAB. Therefore, traumatic experiences are related to a HAB only in migrants. Furthermore, in both groups, schemas do not mediate the relation between traumatic experiences and the HAB.     

Further Evidence for Reliability and Validity of the Triarchic Psychopathy Measure in a Forensic Sample and a Community Sample

Psychopathy is often described as a constellation of personality characteristics encompassing features such as impulsivity and antisociality, and a lack of empathy and guilt. Although the use of self-reports to assess psychopathy is still debated, there are distinct advantages to such measures and recent research suggests that they may not be as problematic as previously thought. This study further examined the reliability and validity of the Triarchic Psychopathy Measure (TriPM) in a community sample (N = 496) and forensic psychiatric patient sample (N = 217). Results indicated excellent internal consistencies. Additionally, the TriPM total and subscale scores related as expected to different subscales of the Psychopathic Personality Inventory –Revised (PPI-R) and to the Reactive and Proactive Aggression Questionnaire, reflecting good construct validity. Most importantly, ROC curve analyses showed that the TriPM evidenced better discrimination between the community sample and forensic psychiatric patients than the PPI-R. The current study extends the existent evidence demonstrating that the TriPM can be used as an efficient self-report instrument.     

Theory of science in the light of Goethe's science of nature∗

J. W. Goethe is well known as one of the world's greatest poets. Some are also aware that throughout his long and active life Goethe devoted much of his time to natural science. His theory of colour and studies in the morphology of plants are acknowledged contributions in their fields. What is much less known is that in his scientific work Goethe was attempting to elaborate and justify a new basic methodology for the natural sciences. He opposed and wished to refute the one‐sided quantitative‐mechanistic method which had been dominant since Galileo and Newton (and in principle still prevails today) and to set up against it a qualitative method. An essential characteristic of this qualitative method, according to Goethe, is that it is immune to a Humean reduction of the status of ‘natural laws’ to mere hypotheses. This claim makes Goethe's view directly relevant for current discussion of such questions as the status of scientific ‘laws’ and the correct method of theory construction. The present essay tries to show the fruitfulness of Goethe's view for such discussions, partly by means of an exposition of the view — drawn from various works — and partly by drawing consequences from it which bring it into direct contact with contemporary discussions in philosophy of science.