Causal status as a determinant of feature centrality

One of the major problems in categorization research is the lack of systematic ways of constraining feature weights. We propose one method of operationalizing feature centrality, a causal status hypothesis which states that a cause feature is judged to be more central than its effect feature in categorization. In Experiment 1, participants learned a novel category with three characteristic features that were causally related into a single causal chain and judged the likelihood that new objects belong to the category. Likelihood ratings for items missing the most fundamental cause were lower than those for items missing the intermediate cause, which in turn were lower than those for items missing the terminal effect. The causal status effect was also obtained in goodness-of-exemplar judgments (Experiment 2) and in free-sorting tasks (Experiment 3), but it was weaker in similarity judgments than in categorization judgments (Experiment 4). Experiment 5 shows that the size of the causal status effect is moderated by plausibility of causal relations, and Experiment 6 shows that effect features can be useful in retrieving information about unknown causes. We discuss the scope of the causal status effect and its implications for categorization research.     

The structure of self-reported aggression, drug use, and delinquent behaviors during early adolescence

Examined the structure of self-report scales designed to assess the frequency of adolescent problem behaviors. Urban (n = 988) and rural (n = 1,895) middle school students completed the Problem Behavior Frequency Scale (Farrell, Danish, & Howard, 1992a) and measures of other relevant constructs. Confirmatory factor analyses supported a model that included specific factors related to aggression, drug use, and delinquent behaviors, and a higher order problem behavior factor. Findings did not support a distinction between physical and nonphysical aggression. Results were generally consistent across settings (i.e., urban vs. rural) and gender. Other relevant constructs, including peer pressure for drug use and attitudes favoring aggression, had both specific associations with relevant first-order factors and more general associations with the second-order factor. These findings support the construction of separate scales assessing specific domains of problem behaviors in studies of adolescents' problem behaviors.     

Michael dummett on The Structure of Appearance

Conclusion My early promise to answer Dummett's criticisms has been kept: both general criticisms of Goodman's constructional method and particular criticisms of specific aspects of the system developed in SA have been met. The general conclusion has to be that Dummett in his review, and in his elaborations in his two later articles, is not a reliable guide to SA itself, or to its significance. Those whom I hypothesized as having left their copies of SA unread on the basis of Dummett's unfavourable judgment should now, even if belatedly, read them.     

Tender Mercies: Love,Oatmeal, and the Quest for Wholeness

Tender Mercies (1983) is a simple and quiet film that reveals a complexity in its depiction of the many forms love can assume in the soul. Using some of C. G. Jung's and Robert Johnson's observations on the dynamic nature of love, the article tracks the plot of Horton Foote's award-winning screenplay as it unfolds the qualities of love, beginning with romantic love, the most popular form our current culture depicts and promotes, as well as perhaps less glamorous and outwardly exciting forms that nonetheless ground the soul in fuller, more sustainable relations between couples, father and daughter, father and son, as well as the deep passion for what excites and sustains us as creative persons. It also touches on the infernal form of addiction as a kind of fixed and fixated love that harbors no freedom for the individual; an addiction is understood as pornographic to the extent that it continues to promise what it cannot ever deliver, so the individual is always hooked by its fury. By looking closely at various scenes from the film, the author articulates the slow retrieval of one soul from addiction to a life full, whole, and satisfying in its creative and familial love.     

Social influences on unconscious plagiarism and anti-plagiarism

People are more likely to unconsciously plagiarise ideas from a same-sex partner than a different-sex partner, and more likely to unconsciously plagiarise if recalling alone rather than in the presence of their partner [Macrae, C. N., Bodenhausen, G. V., & Calvini, G. (1999). Contexts of cryptomnesia: May the source be with you. Social Cognition, 17, 273–297. doi:10.1521/soco.1999.17.3.273]. Two sets of experiments explore these phenomena, using extensions of the standard unconscious plagiarism paradigm. In Experiment 1A participants worked together in same- or different-sex dyads before trying to recall their own ideas or their partner's ideas. More source errors were evident for same-sex dyads (Experiment 1A), but this effect was absent when participants recalled from both sources simultaneously (Experiment 1B). In Experiment 2A, participants recalled ideas from a single source either alone or in the presence of the partner, using an extended-recall task. Partner presence did not affect the availability of ideas, but did reduce the propensity to report them as task compliant, relative to a partner-present condition. Simultaneous recall from both sources removed this social effect (Experiment 2B). Thus social influences on unconscious plagiarism are apparent, but are influenced by the salience of the alternate source at retrieval.