The Binomial Expansion: Simplifying the Evaluation Process

Individual, small group, and program effectiveness can be evaluated quickly and painlessly using the binomial expansion. This powerful, but seldom used, nonparametric method is described and specific examples are used to illustrate its simplicity and elegance. An abbreviated table of probabilities is included.     

The More You Ask For,the More You Get: Anchoring in Personal Injury Verdicts

The ‘anchoring and adjustment’ bias was demonstrated in a personal injury case using mock jurors. In Experiment 1, the ad damnum, or requested compensation, was manipulated across participants. In Experiment 2, anchors were operationalized as the strength of the legal evidence. Both monetary and causal anchors systematically influenced judgments of the probability that the defendant caused the plaintiff's injuries, compensation awarded, and perceptions of the litigants. These results indicate that anchoring occurs in legal applications, and that plaintiffs would do well to request large compensation awards. In addition, anchors expressed on one scale affected judgments expressed on another scale. This cross-modality anchoring stands in contrast to previous studies. Finally, these anchoring effects are unlikely to be explained by either demand effects or perceived relevance of the anchor.     

Getting More than You Paid For: The Parable of the Treasure and the Pearl as the Experience of Transformation

Matthew??s parables of the treasure and pearl are commonly interpreted as a call to give all one has for the kingdom. In this article, I argue that the experience brought about by the objects is instead the point of these parables. In psychoanalytic terms, the treasure and the pearl represent what Bollas (1987) calls the transformational object. The search for the transformational object is inspired by the infant??s earliest memory of the sudden internal and external transformation brought about by the ministrations of the mother. In adult life, it continues in a search for aesthetic or cultural objects that are identified with the metamorphosis of the self. From this perspective, I explore how the objects of treasure and pearl evoke an emotionally dense transformation to be experienced. The kingdom of heaven is like the surprising object, able to joyfully transform our world. Again, the kingdom of heaven is like the experience of surrendering to the beautiful object, for which we have sought.     

A New Zero-Inflated Negative Binomial Methodology for Latent Category Identification

We introduce a new statistical procedure for the identification of unobserved categories that vary between individuals and in which objects may span multiple categories. This procedure can be used to analyze data from a proposed sorting task in which individuals may simultaneously assign objects to multiple piles. The results of a synthetic example and a consumer psychology study involving categories of restaurant brands illustrate how the application of the proposed methodology to the new sorting task can account for a variety of categorization phenomena including multiple category memberships and for heterogeneity through individual differences in the saliency of latent category structures.     

A Plea For Plurealism

In contrast to monistic realism (as represented by Peirce) and pluralistic irrealism (as represented by Goodman) I argue for what I call plurealism, a view which is both pluralistic and realist, recognizing different worlds that are not only independent of one another, but also independent of us.     

What You Expect Is What You Believe (But Not Necessarily What You Get): A Test of the Effectiveness of Subliminal Self-Help Audiotapes

Seventy-eight subjects, ranging in age from 18 to 60 years, participated in an experiment on the effectiveness of commercially produced subliminal self-help audiotapes. Upon completing pretest memory and self-esteem tests, subjects randomly received either a subliminal self-help tape designed to improve memory or increase self-esteem and were told that they had received either a memory or a self-esteem tape. After listening to the tape for 5 weeks in a home environment, subjects returned to the laboratory for memory and self-esteem tests. The results showed that the subliminal self-help tapes did not affect any of the performance measures in a manner consistent with manufacturer claims. However, subjects' perceptions of personal improvement were consistent with their expectations. Specifically, subjects who thought they had listened to a self-esteem tape were more likely to indicate that their self-esteem had improved and subjects who thought they had listened to a memory tape were more likely to indicate their memory had improved regardless of the actual subliminal content.     

A Person Fit Test For Irt Models For Polytomous Items

A person fit test based on the Lagrange multiplier test is presented for three item response theory models for polytomous items: the generalized partial credit model, the sequential model, and the graded response model. The test can also be used in the framework of multidimensional ability parameters. It is shown that the Lagrange multiplier statistic can take both the effects of estimation of the item parameters and the estimation of the person parameters into account. The Lagrange multiplier statistic has an asymptotic χ²-distribution. The Type I error rate and power are investigated using simulation studies. Results show that test statistics that ignore the effects of estimation of the persons’ ability parameters have decreased Type I error rates and power. Incorporating a correction to account for the effects of the estimation of the persons’ ability parameters results in acceptable Type I error rates and power characteristics; incorporating a correction for the estimation of the item parameters has very little additional effect. It is investigated to what extent the three models give comparable results, both in the simulation studies and in an example using data from the NEO Personality Inventory-Revised.     

A Plea For Mental Acts

Synthese - A prominent but poorly understood domain of human agency is mental action, i.e., thecapacity for reaching specific desirable mental statesthrough an appropriate monitoring of one's...