Idiosyncratic profiles of collinearity error using segments and dot pairs

It is well known that judgments of oblique line segments are more variable and less accurate than are judgments of horizontal or vertical segments, i.e., the “oblique effect.” A prior study from our laboratories confirmed these differentials for a task in which the collinearity of segments at various angular positions was judged. Further, that study found that each observer manifests a distinct, idiosyncratic profile of errors across the 360° range. These error tendencies are conspicuous in models derived by harmonic analysis, and we describe significant excursions of a given model as “delta errors.” The present experiments found complex profiles of delta error with various stimulus and test conditions. A given subject manifested similar models of delta error when judging collinearity of dot pairs versus line segments. In the prior work the segments to be judged were asymmetrically positioned upon the test sheet. However, the asymmetric positioning is not responsible for the errors, as the present work found errors excursions with a round display field. Similar profiles of delta error were found when subjects were allowed to mark an open space, versus being required to respond at a specific distance (indicated by a target circle). This addresses questions of whether the error should be measured as an angle. In the two final experiments, we present evidence that the source of delta error within the nervous system is at the point of binocular synthesis of the information from the two eyes, or beyond, and the effects are not due to errors of reaching. Potential neural substrates for these complex, idiosyncratic error tendencies are discussed. Received: 16 June 2000 / Accepted: 10 March 2001     

Metamorphosis: Essence, appearance, and behavior in the categorization of natural kinds

The transformation paradigm (Rips, 1989) was used to contrast causal homeostasis and strict essentialist beliefs about biological kinds. Participants read scenarios describing animals that changed their appearance and behavior through either accidental mutation or developmental maturation and then rated the animals on the basis of similarity, typicality, and category membership both before and after the change. Experiment 1 in the present study replicated the dissociation of typicality and categorization reported by Rips (1989) but also revealed systematic individual differences in categorization. With typicality and membership ratings collected between participants, however, Experiment 2 found no evidence for the dissociation and few essentialist responders. In Experiment 3, excluding information about offspring led most participants to categorize on the basis of appearance and behavior alone. However, with offspring information included and with questioning focused on the change of kind, essentialist categorization was still surprisingly rare. We conclude that strict essentialist categorization in the transformation task is relatively rare and highly task dependent, and that categorization is more commonly based on causal homeostasis.     

Does a Marriage Ideal Exist? Using Q-Sort Methodology to Compare Young Adults’ and Professional Educators’ Views on Healthy Marriages

This study sought to understand whether young adults and family educators share beliefs about the components of a successful relationship. Young adults viewed successful relationships as having partners who agree on most issues. Educators characterized successful partners as exhibiting positive communication patterns and using relationship maintenance strategies. A third prototype included young adults and educators who described successful relationships in terms of agreement and problem solving behaviors. Implications for researchers and practitioners conclude the article.     

Thinness and eating expectancies predict subsequent binge-eating and purging behavior among adolescent girls

One's expectancies for reinforcement from eating or from thinness are thought to represent summaries of one's eating-related learning history and to thus influence the development of binge-eating and purging behavior. In a 3-year longitudinal study, the authors tested this hypothesis and the hypothesis that binge eating also influences subsequent expectancy development. The authors used trajectory analysis to identify groups of middle school girls who followed different trajectories of binge eating, purging, eating expectancies, and thinness expectancies. Initial eating and thinness reinforcement expectancies identified girls whose binge eating and purging increased during middle school, and expectancies differentiated girls who began these problem behaviors from girls who did not. Initial binge-eating scores differentiated among eating expectancy developmental trajectories. The onset of most behaviors can be understood in terms of learned expectancies for reinforcement from these behaviors. The same model can be applied to the risk for eating disorders.     

Pronouns and quantifier-scope in English

This paper is truly a joint effort and it could not have been written without the contribution of both authors. Garson, though, deserves credit (or blame) for first seeing the need for two kinds of quantifier scope, and also for devising essentials of the positive theory.     

WHAT ABOUT ISAAC?: Rereading Fear and Trembling and Rethinking Kierkegaardian Ethics

In this essay I offer a reading of Fear and Trembling that responds to critiques of Kierkegaardian ethics as being, as Brand Blanshard claims, “morally nihilistic,” as Emmanuel Levinas contends, ethically violent, and, as Alasdair MacIntyre charges, simply irrational. I argue that by focusing on Isaac's singularity as the very condition for Abraham's “ordeal,” the book presents a story about responsible subjectivity. Rather than standing in competition with the relation to God, the relation to other people is, thus, inscribed into this very relation. Fear and Trembling, I contend, advocates a bidirectional responsibility that is constitutive of subjectivity itself and, as such, actually resonates with certain aspects of Levinasian ethics. I conclude by suggesting that Abraham's ordeal is not due to the conflict between a nonreligious duty and the duty to God, but instead reflects a tension that is internal to the life of faith itself.     

Regulatory fit theory at work: prevention focus' primacy in safe food production

The food‐processing industry emphasizes employee compliance to food‐safety standards to prevent distribution of contaminated foods. Regulatory fit theory was tested to examine the applicability of self‐regulation constructs as potential components of person‐job fit. In contexts emphasizing safety, workers higher in prevention should experience greater person‐job fit, thus prevention focus should relate to desirable outcomes. Poultry‐processing workers (n = 180) completed a work‐related regulatory focus scale as part of a survey including a set of outcome measures. Consistent with theory, prevention focus scores related to self‐reported positive work outcomes (job effectiveness, satisfaction, efficacy, enjoyment, involvement), and relationships were statistically mediated by perceived regulatory fit. Results have implications for selection practices and suggest ways work can be structured to enhance job performance.