Correspondence analysis and association models constrained by a conditional independence graph

The manner in which the conditional independence graph of a multiway contingency table effects the fitting and interpretation of the Goodman association model (RC) and of correspondence analysis (CA) is considered.Estimation of the row and column scores is presented in this context by developing a unified framework that includes both models. Incorporation of the conditional independence constraints inherent in the graph may lead to equal or additive scores for the corresponding marginal tables, depending on the topology of the graph. An example of doubly additive scores in the analysis of a Burt subtable is given.Thanks are due to anonymous referees who substantially improved the original draft of this paper.     

初中生考试成绩归因模式研究

在广泛调查初中生对考试成绩的归因和情感反应的基础上,根据Ｗｅｉｎｅｒ的动机和情绪的归因理论,提出了初中生对考试成绩归因的假设模式,然后运用协方差结构模型的统计方法对这个假设模型进行了检验．虽然最初模型经ｘ２拟合度检验被拒绝,但经设定探查产生的最终模型较合适地拟合了数据,并部分支持了Ｗｅｉｎｅｒ的归因理论．按照这个模型,努力归因一内源性维度对初中生的自信心、期望、成就动机产生积极的影响．     

Shy teens and their peers: Shyness in respect to basic personality traits and social relations

The main purpose of this paper was to examine shyness in teenagers from two perspectives: in terms of its relations with basic personality traits and in terms of its influence on the processes that occur in the social networks of high school students. First, we found that shyness was negatively predicted by extraversion and positively by neuroticism. Second, using exponential random graph models we demonstrated that shyness across network effects was similar to reversed extraversion (introversion): Both negatively predicted the number of outgoing relations, whereas they did not affect the number of incoming relations. We discuss the issue of locating shyness in the space of personality traits, supporting the relevance of ascribing it to introversion.     

Deconstructing trait anxiety: a network perspective

Background and objectives: For decades, the dominant paradigm in trait anxiety research has regarded the construct as signifying the underlying cause of the thoughts, feelings, and behaviors that supposedly reflect its presence. Recently, a network theory of personality has appeared. According to this perspective, trait anxiety is a formative construct emerging from interactions among its constitutive features (e.g., thought, feelings, behaviors); it is not a latent cause of these features.

Design: In this study, we characterized trait anxiety as a network system of interacting elements.

Methods: To do so, we estimated a graphical gaussian model via the computation of a regularized partial correlation network in an unselected sample (N?=?611). We also implemented modularity-based community detection analysis to test whether the features of trait anxiety cohere as a single network system.

Results: We find that trait anxiety can indeed be conceptualized as a single, coherent network system of interacting elements.

Conclusions: This radically new approach to visualizing trait anxiety may offer an especially informative view of the interplay between its constitutive features. As prior research has implicated trait anxiety as a risk factor for the development of anxiety-related psychopathology, our findings also set the scene for novel research directions.     

特征相似性、类别标签与因果关系在归纳推理中的作用

采用人工材料,比较类别标签、特征相似性与因果关系对归纳推理强度的影响。包括两个实验,实验1比较类别标签与特征相似性对归纳推理的影响,结果表明,当类别标签对归纳推理的影响显著强于特征相似性时,不能将类别标签等同于一个相似性特征。实验2进一步探讨类别标签与因果关系对归纳推理的作用,结果表明,因果关系作用明显强于类别标签的作用。综合两个实验的结果并整合前人相关研究,提出了不同关系影响归纳推理的强度假想。     

Causal attributions of obese men and women in genetic testing: Implications of genetic/biological attributions1

The present study sought to investigate genetic/biological attributions of obesity, their associations with a predisposition to obesity and their crossectional and longitudinal implications for weight regulation in obese individuals presenting for genetic testing and counselling. A total of 421 obese men and women underwent psychological and anthropometric assessment and a mutation screen of the melanocortin-4 receptor gene. At study entry, women revealed more genetic/biological attributions than men on the Revised Illness Perception Questionnaire adapted to obesity (86.2% versus 59.7%). Genetic/biological attributions of obesity were associated in both sexes with a family history of obesity, assessed through Stunkard's Figure Rating Scale. In both sexes, genetic/biological attributions were unrelated to weight regulation beliefs and behaviour (i.e. self-efficacy, controllability beliefs, restrained eating and physical activity), assessed through standardised questionnaires or interview at baseline and at six-month follow-up. In addition, causal attributions and weight regulation beliefs and behaviour were not predictive of body mass index at six-month follow-up. Overall, the results indicate that causal attributions of obesity to genetic/biological factors in obese individuals presenting for genetic screening and counselling are crossectionally and longitudinally unrelated to weight regulation and longer-term weight outcome. Those who attribute their obesity to genetic/biological factors likely have a familial obesity risk.     

Teaching Early Modern Philosophy as a Bridge between Causal or Naturalistic and Conceptual Thought

It is a challenge in teaching early modern philosophy to balance historical faithfulness to the arguments and concerns of early modern philosophers and interpreting them as relevant to the kinds of thinking that contemporary undergraduate students find plausible. Early modern philosophy is unique, however, in applying modern scientific method directly to problems concerning nonphysical aspects of reality that our contemporary scientific thought, and with it mainstream contemporary culture, no longer find amenable in their own, independent right to reliable reasoned approaches. At the same time, early modern philosophy often also takes seriously purely conceptual or logically consequential thought in the investigation of these topics, as our mainstream contemporary culture does not. This kind of thought, we argue, is distinctive of philosophy in general and appropriate to nonphysical aspects of reality. Early modern philosophy, then, offers a bridge between the kind of reasoned, objective thought our mainstream culture finds plausible and thought about nonphysical reality or, in general, the thought that characterizes philosophy.     

基于语境的预期推理构建的实验研究

两个实验用移动视窗技术,用目标句阅读时间和命名探测词两种指标来考察当文本中有两个情境模型时,读者是否会即时进行预期推理。结果表明,如果在支持性语境与引发推理的信息之间插入一个与支持性语境所描述的情境模型不同的,且与主人公目标有关的因果链上的情境模型的信息,则不管这个插入的情境模型在文本中的位置如何,也不管干扰信息的干扰水平高低,都会降低因果性预期推理在阅读中产生的可能性。     

Responsibility and Manipulation

I address various critiques of the approach to moral responsibility sketched in previous work by Ravizza and Fischer. I especially focus on the key issues pertaining to manipulation. This revised version was published online in August 2006 with corrections to the Cover Date.     

Con-reasons and the causal theory of action

A con-reason is a reason which plays a role in motivating and explaining an agent's behaviour, but which the agent takes to count against the course of action taken. Most accounts of motivating reasons in the philosophy of action do not allow such things to exist. In this essay, I pursue two aims. First, I argue that, whatever metaphysical story we tell about the relation between motivating reasons and action, con-reasons need to be acknowledged, as they play an explanatory role not played by pro-reasons (the reason the agent takes to count in favour of the action taken). Second, I respond to an argument recently developed by David-Hillel Ruben to the effect that a causal theory of action – still known as ‘the standard story’ – cannot account for con-reasons. His argument attempts to show that a fundamental principle of the causal theory cannot be reconciled with the role con-reasons play in a certain kind of imagined case. I first argue that a causal theorist is not, in fact, committed to the problematic principle; this argument has an added benefit, since the principle has been taken by many to show that the causal theory generates a puzzle about the possibility of weak-willed action. I then argue that a causal theorist has good reason to reject the possibility of Ruben's imagined cases. If successful, my arguments make clearer the commitments of the causal theory and show that it can accommodate con-reasons in the way I think they ought to be accommodated.