A Model of Knower-Level Behavior in Number Concept Development

Abstract We develop and evaluate a model of behavior on the Give- N task, a commonly used measure of young children's number knowledge. Our model uses the knower-level theory of how children represent numbers. To produce behavior on the Give- N task, the model assumes that children start out with a base rate that makes some answers more likely a priori than others but is updated on each experimental trial in a way that depends on the interaction between the experimenter's request and the child's knower level. We formalize this process as a generative graphical model, so that the parameters—including the base rate distribution and each child's knower level—can be inferred from data using Bayesian methods. Using this approach, we evaluate the model on previously published data from 82 children spanning the whole developmental range. The model provides an excellent fit to these data, and the inferences about the base rate and knower levels are interpretable and insightful. We discuss how our modeling approach can be extended to other developmental tasks and can be used to help evaluate alternative theories of number representation against the knower-level theory.     

民族宗教学的创立

民族宗教学是民族学与宗教学的交叉学科,是一门新兴的人文学科,其主轴是研究民族与宗教的互动关系,其核心理念是:"族教和谐,多元互补"。近些年在中央民族大学"985工程"推动下,课题组开展了民族宗教学的学理的系统研究,推出《民族宗教学导论》专著,初步搭建了民族宗教学的理论框架。本文主要围绕着民族宗教学的研究对象、范围、方法、主要概念和理论体系展开论述,从发生学、历史学、社会学、文化学、政治学等多学科角度介绍民族宗教学的基本议题和思路,并阐述中国宗教生态模式。     

Teacher–child interactions: relations with children's self‐concept in second grade

This study examined whether teacher–child interactions characterized by teacher involvement, structure, and autonomy support at the beginning of second grade predicted children's global, academic, social, and behavioural self‐concept at the end of second grade. The study was conducted in 30 second grade classrooms with 570 children and their teachers. Data included teacher reports of teacher–child interactions and child reports of self‐concept. Results showed that, when controlling for the initial level of self‐concept, children's social self‐concept was predicted by teacher involvement, structure, and autonomy support. In addition, teacher autonomy support predicted high academic self‐concept. Finally, these teacher–child interaction characteristics did not contribute to the behavioural and global self‐concept. The results were similar for boys and girls. Copyright © 2010 John Wiley & Sons, Ltd.     

学业成就、创造力与跨学科概念图创作能力的关系

为了从知识基础和创造性思维视角探讨跨学科知识整合的条件,以125名高二学生为被试采用相关研究设计考察了学业成就、创造力与跨学科概念图创造能力的关系。结果发现：（1）学业成就与跨学科概念图创作能力正相关;高成就组在命题、交叉和总分维度上的表现优于低成就组;而中成就组在命题和总分维度上的表现优于低成就组;（2）创造力与跨学科概念图创作能力正相关;创造力的流畅性和独创性与跨学科概念图的所有维度正相关;灵活性与概念图创作的命题、交叉、范例和总分正相关;（3）学业成就与创造力能够中等程度地预测跨学科概念图创作不同能力组被试的分布。这表明学业成就和创造力是跨学科知识整合的基础。     

卫生技术评估在医疗领域的开展

介绍了卫生技术评估的基本概念以及对医疗卫生领域的影响,并指出在开展评估过程中应注意的几个问题。     

概念组合的理论模型

概念组合是将两个或多个概念组合成一个新概念的过程,生成的新概念被称为组合概念。组合概念的解释策略及影响因素已成为概念研究中的热点问题。研究者相继提出了关系竞争理论、双重加工理论和约束理论等模型。但是,这些理论模型只能解释特定的实验现象,对某些稳定的实验现象（如涌现特征、范畴效应等）却缺乏解释力度。文章提出,未来的研究应该整合已有的实验现象和理论模型,关注概念组合的时间进程,深入考察语境的作用,并系统地研究组合概念的涌现特征和范畴效应。     

科学是中医的“紧箍咒”吗？——中医与科学相关问题的思考

中医的科学属性近年来备受争论,从辩证哲学、科学观念、中医的人文哲学特色等角度剖析中医的哲学内涵和科学隶属,澄清观念,得出结论,中医本身就是一门人文与科学交融的古代科学,传统文化与现代科技的互融互动,合而不同,新世纪发展中医的认识观需要与时俱进。     

维特根斯坦的哲学观

该文介绍了后期维特根斯坦对哲学的看法。其要点是:哲学的核心工作是概念考察;所考察的是自然概念,用以考察的也是自然概念;因此,哲学工作和实证科学是在两个层面上展开的;哲学的目标不是建构理论;哲学的任务是治疗由误解哲学语法所造成的智性扭曲。文章最后粗略讨论了观念和概念的关系。     

假想的道德两难情境下小学儿童对说谎或说真话的抉择

研究探讨了294名7、9、11岁的小学儿童在道德两难情境下对说谎或说真话的道德行为抉择。结果表明,在个人谎故事条件下,随着年龄的增长,儿童越来越倾向于选择说真话;在集体谎故事条件下,11岁儿童比7岁、9岁儿童更倾向于选择说谎。7岁儿童已具有初步的集体观念,随着年龄的增长,小学儿童的集体观念日趋稳定。随着年龄的增长,小学儿童更多地从诚实、为集体或为个人等多个方面来陈述说谎或说真话的理由。     

On value and culture

Value stands for the significance of things, and concepts of value are ideas, opinions and attitudes about what kind of things are significant. Studies on the concept of value cannot be separated from culture. Every society has its own distinct culture and concept of value shared by its people. The relationship between concept of value and culture shows that the building of the concept of value must be based on culture. Developing culture, providing excellent products of culture and better humanitarian environment are the premise for people’s possession of the correct concept of value. __________ Translated from Hebei Xuekan 河北学刊 (Hebei Academic Journal), 2005 (1) by Dong Lihe