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1.
有关人类推理的“知识与试题双重结构模型”理论认为,任何演绎推理问题都是由推理形式和推理内容两方面所构成的。通过对大学生在进行条件推理时是否遵循“形式”和“内容”两种判断标准进行检验,发现前提正确的具体命题有整体的内容促进效应;具体命题在MP、MT和AC上符合“形式”和“内容”两种判断标准,在DA形式上则没有符合两种判断标准的结果;前提错误的具体命题在DA形式上有内容促进效应,即前提错误命题的否定前件促进效应。  相似文献   

2.
个体的CPFS结构,是指在数学学习中学习者在头脑中形成的概念域、概念系、命题域、命题系.CPFS结构是对数学知识表征的一种刻画、是数学学习特有的认知结构.个体CPFS结构与探究问题之间的关系的研究结果表明:个体CPFS结构与探究问题能力之间存在显著性相关;具有优良CPFS结构的被试与不良CPFS结构的被试在探究问题的成绩上存在显著性差异,但是在定向提问方面差异不显著,在直觉提问的探究问题性质方面差异显著;对被试而言,问题的熟悉程度与他们探究问题有直接影响,但问题的熟悉性与个体CPFS结构没有交互作用;在有外部调控的情况下,优良CPFS结构组和不良CPFS结构组的被试在探究中、低难度问题的成绩有显著差异,在探究高难度问题的成绩上没有显著差异.  相似文献   

3.
计算机自适应测验(CAT)是建立在项目反应理论基础上,由计算机根据被试能力水平自动选择测题,从而对被试能力做出估计的新型测验。计算机自适应测验呈现给考生的试题是依据被试在前一个试题作答的表现好坏来决定的,其实现条件应囊括以下五个部分。  相似文献   

4.
试题命制是考试的基础要素和关键环节,体现着考试作为测量手段的科学理性。试题的结构要素分别是刺激情境(线索材料)、设问(作答指令)、分值赋予、答案及评分标准等。试题命制的科学性指试题整体及其结构要素所涉及的情境素材、概念原理和推理论证等准确可靠,没有错误或者歧义。科学性维度的技术规范要求命题时首先明确测试的"构念",即测试要测的到底是被试哪方面的特质,"构念"相对抽象,需要在内容领域和认知能力等方面对"构念"进行分解使之具体化;基于测试"构念",考核重要的而非无关紧要的学习内容;其次要求试题刺激情境自身的合理性与科学性,要求试题的作答指令清晰明确无歧义,要求分值赋予合理,要求参考答案与评分标准精确并与情境素材保持逻辑一致。试题命制还需要关注试题的局部独立性。科学性是任何考试都必须遵循的基础性原则,试题命制自始至终都必须规避因科学性错误带来的测试偏差和风险。  相似文献   

5.
新课标课程选修系列1-2(文科)和2-2(理科)中都介绍了合情推理.近年来,考查合情推理的试题频频出现在全国各地的高考试卷上.请看下面2道试题:  相似文献   

6.
目的:探讨非言语学习困难青少年二维空间和非空间关系推理策略。方法:从初中二年级选取三组被试:非言语学习困难组(简称NLD)、言语学习困难组(简称VLD)和一般组(简称C)。结果:(1)NLD组空间关系推理成绩显著低于一般组;(2)在空间关系推理中,两类单模题推理成绩显著高于双模题。在非空间关系推理中,有无关前提的题推理成绩显著高于没有无关前提的题;(3)一般组正确运用模型建构策略显著高于NLD和VLD组。结论:NLD青少年通过建构模型解决空间关系推理,但不能有效运用该策略,非空间关系推理则采用逻辑规则策略。  相似文献   

7.
背景、年级及其交互作用显著影响被试正确估计贝叶斯推理问题,信息表征影响不显著,九年级被试成绩优于八年级;初中生解决贝叶斯推理问题仍然是困难的,无论是频数表征还是概率表征,正确解答的比率都不高;被试虽不了解贝叶斯公式,但能在具体情境中发现贝叶斯原理,问题情节、数据大小差距等影响被试的策略选择与正确估计.  相似文献   

8.
2011年高考物理(江苏卷)第15题立足于考生熟悉的回旋加速度模型,考察了对带电粒子在电磁场中运动的研究能力,值得称道的是,该题将常规的回旋加速器改变后,构建了粒子在磁场中的运动周期与交变电场的周期不相等的问题,增加了试题题的难度,深入考察了学生的综合分析和推理能力以及运用数学中的数列知识解题的能力.  相似文献   

9.
运用结论评估的推理实验范式,以大学生为被试考察了逻辑课程学习对信念偏差效应的影响.研究结果初步表明,无论是时间推理问题还是三段论推理问题,逻辑课程学习对学生的逻辑推理成绩没有显著影响,也没有改变学生在推理中信念偏差效应的强度与表现模式.从本研究结果来看,信念偏差效应不仅与被试的逻辑推理能力有关,被试抑制无关信念的执行控制能力也是影响信念偏差效应的重要因素.  相似文献   

10.
为分散效应的普遍性提供新证据,拟将记忆领域中的分散效应拓展到词汇之间逻辑关系的分类学习中。通过操纵学习方式(集中/分散),考察人们在学习词汇之间逻辑关系的类别时是否存在分散效应。结果发现:(1)分散学习成绩显著高于集中学习,表明逻辑关系的分类学习中也存在分散效应;(2)被试自信心判断在两种学习条件下没有显著差异,表明在该研究范式下的被试在元认知监测的过程中对分散效应不敏感。  相似文献   

11.
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.  相似文献   

12.
风的曲线     
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.  相似文献   

13.
Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.  相似文献   

14.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

15.
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.  相似文献   

16.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

17.
《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.  相似文献   

18.
19.
王菲 《华章》2007,(12):273-273
Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.  相似文献   

20.
This paper looks at the way drama works to bring a model of an arts curriculum into reality. He also shows how drama is valuable when discussed as a separate, autonomous subject in the school curriculum as opposed to one subsumed within English. He argues for a view of the arts and gives an example of a sequence of work in an English GCSE class based around Arthur Miller's play View from the Bridge. From this he draws out several strands about the relationship of the drama curriculum to the individual students and teachers, the school, and to culture. He also emphasises the primacy of performance in drama education.  相似文献   

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