认知诊断计算机化自适应测验中在线标定方法的开发

项目增补对认知诊断计算机化自适应测验(CD-CAT)中的题库维护至关重要。在传统CAT中, 在线标定方法经常用于估计新题的项目参数。然而直到现在, 在CD-CAT领域还没有任何关于在线标定的论文公开发表。为将传统CAT中3种有代表性的在线标定方法(Method A、OEM和 MEM)推广至CD-CAT (CD-Method A、CD-OEM和CD-MEM)建立分析基础, 并采用模拟方法对这3种方法进行比较。研究表明：CD-Method A方法在项目参数的返真性方面优于其它两种方法; 自适应标定设计较随机标定设计可以提高项目参数的返真质量。     

得失框架效应的分离—— 来自收益与损失型跨期选择的研究

本研究通过创设收益和损失跨期选择情境, 采用不同表征方式(得框架、失框架)的跨期选择任务, 分别探讨了收益和损失情境下的跨期选择是否存在得失框架效应, 及其是否会受任务难度的影响。结果发现：(1)收益型跨期选择只在任务容易时存在得失框架效应, 与失框架相比, 被试在得框架下选择即时获益的概率更高; 任务困难时得失框架效应消失(实验a); (2)损失型跨期选择中不存在得失框架效应(实验b)。结果表明, 得失框架效应在损、益型跨期选择中出现了分离, 收益型跨期选择中的得失框架效应的内在认知机制很可能与风险决策中的框架效应类似并且是一种较为初级的认知加工过程。     

基于CTT的锚测验非等组设计中四种等值方法的比较研究

采用锚测验非等组设计的数据收集方案,对4种基于经典测量理论的等值方法进行了比较研究。研究数据取自TIMSS1999数据库,兼用等值标准误和交叉验证方法作为各等值方法比较的检验标准,利用CIPE程序对实验数据进行分析。研究结果表明,针对本研究所设置的等值情境,线性等值优于等百分位等值,其中Tucker线性方法比Levine观察分数线性方法更好一些,Braun-Holland线性方法不宜采用,频数估计等百分位方法等值误差较大,亦不足取。     

教师课堂教学行为对学生学业成绩的影响:一个跨文化研究

教师一向被认为是影响学生学业成绩的重要因素。本研究采用第三次国际数学和科学研究TIMSS2003中的数据,以学生数学成绩为因变量,教师课堂教学行为为自变量,使用多层线性回归的方法,比较了美国、瑞典、日本和香港这四个国家(地区)教师课堂教学行为对学生学业成绩的影响。研究结果发现,教师特定的行为因素,教学的准备、对作业的重视、对考试的重视、对推理和问题解决的重视、电脑的使用确实能有效影响美国和瑞典的学生成绩,但对两个亚洲国家(地区)没有影响;教师的性别、教龄、教育水平、所学专业和教师资格再次被证实对学生成绩没有显著影响;学生的家庭和自身的因素(如学生年龄、性别、完成作业的时间,对数学的自信和对数学的评价)能够对学生成绩产生重要影响。     

论教师的教学效能感

教师的教学效能感是教师对自己影响学生学习行为和学习成绩的能力的主观判断 ,已有的研究表明 ,它与教师的教学效果、学生的学习状况之间存在着密切的关系。本文是我们对教师教学效能感研究的初步总结 ,全文共分五部分 ,分别为 :1教师教学效能感的含义及其理论与实践的来源 ;2教师教学效能感的结构分析 ;3教师教学效能感的作用机制 ;4教师教学效能感的影响因素分析 ;教师教学效能感的发展与提高     

博山无异元来家风之考察

在禅思想史研究中,一代禅门宗师的家风宗范若何,这是一个值得探究的议题.家风宗范通常会有一二字眼来加以形容.对于我们研究者来说,如何自彼抽象中,尽可能地彰显或表现其内在脉络及基质的条理与层次,这应该是一个有意义的研究取向.作为晚明之时的重要禅师,博山无异元来上接无明慧经之法脉,下开宗宝道独一系,旁迪鼓山永觉元贤,其家风流韵在明末清初禅门形成一道亮丽风景,影响可谓深巨.本文即以博山为中心,对其缜密家风的内涵进行考察.     

From A to Z? Retrieval-induced forgetting of non-verbal information indicates how writing systems can shape memory organisation

We investigated retrieval-induced forgetting of motor sequences in samples of Chinese participants. Retrieval-induced forgetting occurs when selective retrieval of a subset of information stored in memory causes forgetting for the non-retrieved rest. This phenomenon critically depends on the organised storage of separate categories of memory representations. In studies with participants from a Western culture (Germany), a categorization in left- and right-hand movements previously had been supported by letter stimuli based on a spatial mental representation of the Roman alphabet. The same assignment of letters from the beginning or end of the alphabet to motor sequences performed either with the left- or the right-hand did not entail retrieval-induced forgetting in the present study, however (Experiment 1). In Experiment 2, visual features of displaying to-be-learned sequences additionally supported a distinction into left and right. In Experiment 3, learning trials provided verbal category labels. The occurrence of retrieval-induced forgetting in the latter two experiments suggests language-dependent organisation of non-verbal items in memory.     

Phonological storage and executive function deficits in children with mathematics difficulties

Children with mathematics difficulties suffer from working memory deficits. This study investigated the deficit profile of phonological storage and executive functions in working memory among children with mathematics difficulties. Based on multiple instruments and two assessment points, 68 children were screened out of 805 fifth graders. Of these 68 children, 18 were classified as children with only mathematics difficulties (MD), 20 were classified as children with mathematics and reading difficulties (MDRD), and 30 were typically developing (TD) peers matched on age and general ability. Measures for phonological storage, dual-task performance, inhibition, and updating of verbal and numerical materials were administered individually. Results showed that compared with the TD group, children with MD exhibited storage and inhibition deficits specific to numerical information and dual-task deficits of both verbal and numerical information, whereas children with MDRD showed extensive deficits on phonological storage and executive functions on both verbal and numerical tasks. Moreover, executive function deficits were not confined to phonological storage deficits. Implications of the findings for the working memory deficit profile and working memory training among children with mathematics difficulties were discussed.     

Online Calibration Methods for the DINA Model with Independent Attributes in CD-CAT

Item replenishing is essential for item bank maintenance in cognitive diagnostic computerized adaptive testing (CD-CAT). In regular CAT, online calibration is commonly used to calibrate the new items continuously. However, until now no reference has publicly become available about online calibration for CD-CAT. Thus, this study investigates the possibility to extend some current strategies used in CAT to CD-CAT. Three representative online calibration methods were investigated: Method A (Stocking in Scale drift in on-line calibration. Research Rep. 88-28, 1988), marginal maximum likelihood estimate with one EM cycle (OEM) (Wainer & Mislevy In H. Wainer (ed.) Computerized adaptive testing: A primer, pp. 65–102, 1990) and marginal maximum likelihood estimate with multiple EM cycles (MEM) (Ban, Hanson, Wang, Yi, & Harris in J. Educ. Meas. 38:191–212, 2001). The objective of the current paper is to generalize these methods to the CD-CAT context under certain theoretical justifications, and the new methods are denoted as CD-Method A, CD-OEM and CD-MEM, respectively. Simulation studies are conducted to compare the performance of the three methods in terms of item-parameter recovery, and the results show that all three methods are able to recover item parameters accurately and CD-Method A performs best when the items have smaller slipping and guessing parameters. This research is a starting point of introducing online calibration in CD-CAT, and further studies are proposed for investigations such as different sample sizes, cognitive diagnostic models, and attribute-hierarchical structures.     

性别在企业员工成人依恋对工作绩效关系中的调节作用

本研究探讨了依恋关系对员工工作绩效影响,并进一步考察了性别在两者关系中的调节作用。通过采用亲密关系经历量表(ECR)、关系问卷(RQ)和工作绩效问卷三个研究工具,对110名不同职业和岗位员工的依恋模式与工作绩效的关系进行调查,结果发现：1. 倾注型被试在情境绩效上的得分显著得低于安全型被试和害怕型被试。2.依恋焦虑与任务绩效和情境绩效均呈显著正相关。3.依恋焦虑可以正向预测情境绩效。4. 通过进一步分析,发现男性和女性在情境绩效和任务绩效上有所不同,说明性别在依恋关系和工作绩效之间起调节作用。