Development of catching by children in kindergarten to grade 8: a multicohort longitudinal study

The purpose of this study was to examine developmental change associated with catching by children in Grades Kindergarten through 8. Children's performance was tested on the Catching Subtest of the Ohio State University Scale of Intra Gross Motor Assessment (OSU-SIGMA). More precisely, four cohorts of boys and girls in Grades K-8 (N = 340) from 1992 to 2000: in 1992 Grades K-8, in 1994 Grades 2-8, in 1996 Grades 4-8, and in 1998 Grades 6-8. In 2000, the original Kindergarten cohort was tested again. Data, analyzed by hierarchical nonlinear modeling, yielded significant differences in mean initial status (intercept) of all three cohorts, in mean growth rate (slope) for the K-8 cohort only, in initial status of the K-8 cohort, and for participants in baseball and softball.     

Relevant possibilities

There are a number of relevant alternatives accounts of knowledge in the literature, including those by contextualists (like Lewis and Cohen), and invariantists (like Dretske). Despite widespread discussion of such views, an explication of the notion of relevance is conspicuously absent from the literature. Without a careful explication of that notion, relevant alternatives accounts resist evaluation. This paper attempts to aid in the evaluation of those accounts, by providing an account of relevance. The account rejects two common presuppositions about the notion of relevance. The account holds that worlds, rather than alternatives, are relevant, and that distant worlds can be relevant. Relevant worlds turn out to be those worlds at which an alternative to one’s belief obtains, and is such that one’s epistemic position (with respect to what one believes at the actual world) is worse than it is at the actual world.     

Truck Driver or Nurse? The Impact of Gender Roles and Occupational Status on Children’s Occupational Preferences

Three experiments examined how US children perceive occupational status and gender roles. In Experiment 1, 107 6-to-12-year-olds rated the status and gender roles of 54 occupations. Feminine occupations were underrepresented among the perceived high status jobs. In Experiment 2, 28 6-to-8-year-olds, and in Experiment 3, 36 9-to-12-year-olds, reported their preferences for equally high status masculine and feminine occupations and low status masculine and feminine occupations. In both experiments, girls preferred feminine to masculine occupations and status only affected preferences for masculine occupations. The younger boys’ preferences were based on both variables, whereas older boys’ preferences were based on status. These findings imply that occupational status may influence boys’ vocational preferences more than pressure to conform to masculine gender roles.     

A rational analysis of rule-based concept learning

This article proposes a new model of human concept learning that provides a rational analysis of learning feature-based concepts. This model is built upon Bayesian inference for a grammatically structured hypothesis space—a concept language of logical rules. This article compares the model predictions to human generalization judgments in several well-known category learning experiments, and finds good agreement for both average and individual participant generalizations. This article further investigates judgments for a broad set of 7-feature concepts—a more natural setting in several ways—and again finds that the model explains human performance.     

Interference risk and the function of dynamic shifts in calling in the gray treefrog (Hyla versicolor)

Male gray treefrogs call to attract females under challenging acoustic conditions. At higher chorus densities, there is considerable background noise and a good chance that a male's calls will often be overlapped by calls of other individuals. Call overlap may reduce the probability of mating because females prefer calls with internal pulse structure that is not obscured. With increases in acoustic stimulation, males lengthen call duration while simultaneously reducing call rate such that "pulse effort" changes little. In our study, we tested the "interference risk hypothesis." This proposes that males change call duration so that, on average, there will be a sufficient number of pulses and interpulse intervals clear of acoustic interference per call to attract a female. However, female choice experiments employing call alternatives of different durations, rates, intensity levels, and degrees of call overlap refuted this hypothesis. Our results leave open the possibilities that the dynamic shift in the two components of pulse effort are related to the problem of call detection in a noisy environment or are responses by males to the perceived threat of competition for females.     

Michael Smith and the rationality of immoral action

Although it goes against a widespread significant misunderstanding of his view, Michael Smith is one of the very few moral philosophers who explicitly wants to allow for the commonsense claim that, while morally required action is always favored by some reason, selfish and immoral action can also be rationally permissible. One point of this paper is to make it clear that this is indeed Smith’s view. It is a further point to show that his way of accommodating this claim is inconsistent with his well-known “practicality requirement” on moral judgments: the thesis that any rational person will always have at least some motivation to do what she judges to be right. The general conclusion is that no view that, like Smith’s, associates the normative strength of a reason with the motivational strength of an ideal desire will allow for the wide range of rational permissibility that Smith wants to capture. Many thanks to Michael Smith for his friendly and helpful comments on an earlier draft of this paper, and for permission to make a very strong and explicit claim on his behalf.     

A Cultural Analysis of the Experiment and an Experimental Analysis of Culture

What is it that one can and cannot learn from experiments? The present paper addresses this question from the perspective of cultural psychology. The first half of the paper examines implicit constructions of reality – like individualism, assumptions about the purity of the experimental context and the nature of mind, and the meaning of empirical– that constitute the culture of experimental social psychology. The second half of the paper illustrates an experimental approach to the study of culture with an example from a program of research on enemyship. Overall, the paper suggests that experimental methods may be best suited for arguments about proximal cause, but less appropriate for arguments about the distal causes of events in the everyday world. Rather than advocate that social psychologists abandon the experiment, a cultural psychology perspective suggests the reflexive use of experimental methods in conjunction with multiple techniques of empirical observation.     

An affirmed self and an open mind: Self-affirmation and sensitivity to argument strength

Self-affirmation seems to enable an individual to objectively evaluate information that would otherwise evoke a defensive reaction. If this objectivity reflects freedom from self-evaluative concerns, affirmation should sensitize people to central cues of a persuasive message, like argument strength. If affirmation simply induces agreeableness or trivializes the issue, affirmed participants should not particularly heed argument strength. Affirmed and non-affirmed participants rated the persuasiveness of pro- and counterattitudinal arguments that varied in strength. Among participants who rated their attitudes as personally important, self-affirmation decreased bias and increased sensitivity to argument strength, as predicted by self-affirmation theory.     

Examining antisocial behavior through the lens of the five factor model of personality

The current study attempts to provide greater precision in understanding how personality is related to antisocial behavior. Specifically, we examined the relations between the facets (subordinate traits) from three domains (superordinate dimensions): Neuroticism, Agreeableness, and Conscientiousness, of the Five Factor Model and five outcome variables: stability of conduct problems, variety of conduct problems, onset of conduct problems, aggression, and antisocial personality disorder symptoms. These relations were examined in a community sample of 481 individuals. These three personality dimensions were chosen for exploration due to their consistent relations, at the domain level, with antisocial behaviors. The results from this study suggest that the facets from the dimension of Agreeableness are the most consistently related to all five outcomes. However, the facets from all three domains made significant contributions. Overall, three personality traits stood out as being the strongest and most consistent predictors: low straightforwardness, low compliance, and low deliberation. Implications for prevention and intervention are discussed. Aggr. Behav. 29:497–514, 2003. © 2003 Wiley‐Liss, Inc.