Higher-order latent trait models for cognitive diagnosis

Higher-order latent traits are proposed for specifying the joint distribution of binary attributes in models for cognitive diagnosis. This approach results in a parsimonious model for the joint distribution of a high-dimensional attribute vector that is natural in many situations when specific cognitive information is sought but a less informative item response model would be a reasonable alternative. This approach stems from viewing the attributes as the specific knowledge required for examination performance, and modeling these attributes as arising from a broadly-defined latent trait resembling theϑ of item response models. In this way a relatively simple model for the joint distribution of the attributes results, which is based on a plausible model for the relationship between general aptitude and specific knowledge. Markov chain Monte Carlo algorithms for parameter estimation are given for selected response distributions, and simulation results are presented to examine the performance of the algorithm as well as the sensitivity of classification to model misspecification. An analysis of fraction subtraction data is provided as an example. This research was funded by National Institute of Health grant R01 CA81068. We would like to thank William Stout and Sarah Hartz for many useful discussions, three anonymous reviewers for helpful comments and suggestions, and Kikumi Tatsuoka and Curtis Tatsuoka for generously sharing data.     

Towards a Sociological turn in Contextualist Moral Philosophy

Contextualist moral philosophers criticise hands-off liberal theories of justice for abstracting from the cultural context in which people make choices. Will Kymlicka and Joseph Carens, for example, demonstrate that these theories are disadvantageous to cultural minorities who want to pursue their own way of life. I argue that Pierre Bourdieu's critique of moral reason radicalises contextualist moral philosophy by giving it a sociological turn. In Bourdieu's view it is not enough to provide marginalised groups or subgroups with equal access to public institutions and specific cultural rights—in some cases this may in fact be detrimental. He contends that scientists, politicians and other intellectuals have a duty to take seriously the social presuppositions of free deliberate choice and public opinion and to support cultural minorities with instruments to liberate themselves from their often precarious situation.     

班级集体效能对初中生学业自我效能与学习倦怠的调节作用

采用学习倦怠、学业自我效能、班级集体效能问卷,选取26个班级的1125名初中生作为被试,运用多层线性模型探讨班级集体效能对学业自我效能与学习倦怠的影响。在控制性别和年级的影响后,结果发现:(1)班级集体效能与学习倦怠具有直接的关联:班级正向联合力越高,则学生的学习成就感越高;班级负向联合力越高,则学生的情绪与生理的消耗越严重;班级优秀成员的效能越高,则其他学生学习的成就感越低,师生关系越疏远、生理消耗越严重;而班级成员的自我效能越高,学生的学习成就感越高、情绪的损耗越小;(2)班级集体效能对学业自我效能与学习倦怠之间的关系具有显著的调节作用:班级的正向和负向联合力越强,则学业自我效能对师生疏离的负向影响就越弱;班级的负向联合力越强,则学业自我效能对情绪耗竭的负向影响就越小;优秀成员效能越高,则学业自我效能对学习低成就感的负向影响就越大;而成员自我效能强,则学业自我效能对师生疏离的负向影响也强。     

班级环境与青少年抑郁的关系：核心自我评价的中介与调节作用

通过整群抽样的方法抽取了1404名中学生,对其施测核心自我评价量表,我的班级问卷和抑郁问卷,应用无约束结构方程模型技术和结构方程中介效应检验技术,分别考察了核心自我评价在班级环境与抑郁关系间的调节与中介作用。结果表明：（1）核心自我评价对班级环境中的师生关系、同学关系、竞争三者和抑郁之间的关系起着调节作用,但结构模型的拟合指数不佳;（2）核心自我评价在班级环境与青少年抑郁间起着中介作用,其中核心自我评价在竞争与抑郁间关系起着完全中介作用。     

Topographical and functional properties of precursors to severe problem behavior

A literature search identified 17 articles reporting data on 34 subjects who engaged in precursors to severe problem behavior, which we examined to identify topographical and functional characteristics. Unintelligible vocalization was the most common precursor to aggression (27%) and property destruction (29%), whereas self- or nondirected movement was the most common precursor to SIB (32%). Unintelligible vocalization and object-directed movement were the most common precursors to behavior maintained by social-positive reinforcement (27% each), and unintelligible vocalization was the most common precursor to behavior maintained by social-negative reinforcement (29%). Only one precursor was reported for behavior maintained by automatic reinforcement.     

Latent structure of dieting among female high-school students in Japan

The purpose of the present study was (1) to clarify whether individuals could be classified in terms of dieting using latent class analyses; and (2) to review the resulting classes were related to body dissatisfaction, body mass index, depressive mood, and binge eating. The present sample comprises 441 Japanese high-school girls. The optimal solution consisted of three latent classes: (1) unhealthy dieter (27%); (2) healthy dieter (39%); and (3) nondieter (34%). Inclusion in the unhealthy dieter class was predicted by body dissatisfaction and the girls in this class showed a high frequency of binge eating, while that in the other classes was not associated with any variable. This study identifies three classes with regard to dieting among female high-school students in Japan.     

教师自主支持与初中生的学习投入:家庭社会阶层与学生自主动机的影响

采用学习氛围量表、主观社会阶层量表、学业调节问卷和修订的课堂投入问卷对1211名初中生进行调查,根据主观社会阶层得分在3分以下、6分以上的标准,筛选出491名典型低阶层(374人)与高阶层(117人)被试,考察教师自主支持与初中生学习投入的关系,以及学生自主动机在其中的中介作用和家庭社会阶层的调节作用.结果表明:(1)教师自主支持与初中生的学习投入之间存在显著正相关;(2)自主动机在教师自主支持与初中生的学习投入之间起部分中介作用;(3)家庭社会阶层在教师自主支持影响初中生自主动机进而影响其学习投入的过程中起到有中介的调节作用.     

Intentionalism and Change Blindness

According to reductive intentionalism, the phenomenal character of a conscious experience is constituted by the experience's intentional (or representational) content. In this article I attempt to show that a phenomenon in visual perception called change blindness poses a problem for this doctrine. Specifically, I argue that phenomenal character is not sensitive, as it should be if reductive intentionalism is correct, to fine-grained variations in content. The standard anti-intentionalist strategy is to adduce putative cases in which phenomenal character varies despite sameness of content. This paper explores an alternative antiintentionalist tack, arguing, by way of a specific example involving change blindness, that content can vary despite sameness of phenomenal character.

Literature,Ethics, and Richard Rorty’s Pragmatist Theory of Interpretation

This article considers the validity and strength of Richard Rorty’s pragmatist theory of interpretation in the light of two ethical issues related to literature and interpretation. Rorty’s theory is rejected on two grounds. First, it is argued that his unrestrained account of interpretation is incompatible with the distinctive moral concerns that have been seen to restrict the scope and nature of valid approaches to artworks. The second part of the paper claims that there is no indispensable relationship between supporting Rorty’s pragmatist theory of interpretation and the important place that is attached to literature in the liberal society outlined by him. A reading of Donald Davidson’s texts on literary language and interpretation implies that an intentionalist theory of interpretation can accommodate those features that Rorty values in literature as well.

班级生态系统对儿童亲社会行为影响的研究述评

依据生态系统观以及班级环境中亲社会行为研究的进展,在班级环境中,与儿童人际互动最密切,对其亲社会行为具有重要影响的两类人群是——同伴和教师。作者把儿童与同伴、儿童与教师之间的互动关系作为班级环境中两个重要生态子系统,依次介绍了班级环境中这两个生态子系统的各成分,以及它们对儿童亲社会行为的影响。文章最后指出,该领域的研究应注重人际间的双向互动、基于观察的互动模式研究、以及重视时间变量对行为过程的影响