认知诊断测验中基于信息矩阵的多群组DIF检验

基于改进的Wald统计量,将适用于两群组的DIF检测方法拓展至多群组的项目功能差异（DIF）检验;改进的Wald统计量将分别通过计算观察信息矩阵（Obs）和经验交叉相乘信息矩阵（XPD）而得到。模拟研究探讨了此二者与传统计算方法在多个群组下的DIF检验情况,结果表明：（1）Obs和XPD的一类错误率明显低于传统方法,DINA模型估计下Obs和XPD的一类错误率接近理论水平;（2）样本量和DIF量较大时,Obs和XPD具有与传统Wald统计量大体相同的统计检验力。     

创造力测量手段——同感评估技术（CAT）简介

同感评估技术（consensusassessmenttechnique）,又称主观评价法,是Amabile于1982年提出的评价创造力的一种方法。文章简要回顾了同感评估技术出现之前,基于发散思维测验的创造力评价法及其局限性。人们在寻求新的创造力评价方法的过程中,提出了同感评估技术。文章重点介绍了同感评估技术的理论基础,即它的同感定义和概念定义,然后说明了同感评估技术的具体使用方法、发展,以及在各领域的应用情况。最后,通过与创造性思维测验的比较,对同感评估技术作了评价,指出了CAT的优势和存在的问题     

元记忆监控对外语语音信息加工的影响

这项研究在元记忆监控环境下考查真实教学情景中学习者对外语语音信息加工的实际效果。结果表明：在外文单词听觉再认与外文单词听觉再现测验中,无论是及时测验还是延时测验,实验组的成绩都明显高于控制组,元记忆训练对外语语音信息的加工是有影响的。     

“风险”性质的探讨──一项联想测验

该实验是为探讨“风险”的性质而进行的词联想测验。实验以“风险”一词作为刺激词,让被试连续进行三次自由式联想。其结果得到了三大类不同性质的联想词及其它相关结论。     

A Statistical Hypothesis Testing Method for the Rank Ordering of the Priorities of the Alternatives in the Analytic Hierarchy Process

In analytic hierarchy process (AHP), a ratio scale (π₁, π₂, ⋯, π_t) for the priorities of the alternatives {T₁, T₂, ⋯, T_t} is used for a decision problem in which π_i/π_j is used to quantify the ratio of the priority of T_i to that of T_j. In a group decision‐making setup, the subjective estimates of π_i/π_j are obtained as entries of a pairwise comparison matrix for each member of the group. On the basis of these pairwise comparison matrices, one of the topics of interest in some situation is the total rank ordering of the priorities of the alternatives. In this article, a statistical method is proposed for testing a specific total rank ordering of the priorities of the alternatives. The method developed is then illustrated using numerical examples. Copyright © 2014 John Wiley & Sons, Ltd.     

Transfer tests of stimulus value in concurrent chains

We report two experiments that use transfer tests to investigate whether in concurrent chains the value of a terminal-link stimulus is affected by the alternate terminal link. In Experiment 1, two groups of pigeons were trained on multiple concurrent-chains schedules in which switching between the schedules was via pecking a changeover key. For one group, the terminal links were fixed-interval 8 s versus fixed-interval 16 s in one component and fixed-interval 16 s versus fixed-interval 32 s in the other component. For a second group, the terminal links were variable-interval 10 s versus variable-interval 20 s in one component and variable-interval 20 s versus variable-interval 40 s in the other. After sufficient baseline training had been given so that performances had stabilized, transfer tests were conducted in which the two chains with equal terminal-link schedules were presented together as a new concurrent pair. For 6 of the 7 subjects, initial-link responding changed fairly rapidly during the test in the manner predicted if the values of the terminal links were equal. In Experiment 2, pigeons were trained on multiple concurrent chains using a two-key procedure, and the terminal links were the same variable-interval schedules as in Experiment 1. After baseline training, transfer tests were conducted that assessed (a) the relative reinforcing strength of the terminal-link stimuli in a novel initial-link situation and (b) the relative ability of those stimuli to evoke responding. The data from the reinforcing strength test were consistent with those from Experiment 1, but those from the evocation strength test were not. Although this discrepancy shows that responding in transfer tests is not solely a function of stimulus value, the results from both experiments suggest, overall, that value is determined by the stimulus—reinforcer relation independently of the alternative terminal link.     

认知诊断模型资料拟合检验方法和统计量

认知诊断模型界定了测验题目和所考察属性之间的关系, 通过被试的作答反应获取被试对属性或知识技能的掌握情况。认知诊断模型资料拟合检验可以从项目拟合、模型绝对拟合、模型相对拟合和个人拟合方等方面进行。通过对认知诊断拟合检验方法和统计量的详细介绍和评价, 可为认知诊断实践提供借鉴和参考。未来研究可在更丰富的研究条件下对各统计量的性能进行评价和对比, 完善已有的拟合检验方法, 提出新的拟合统计量。     

观点采择对内隐刻板印象的影响研究

该研究对大学生在观点采择和控制两种条件下,性别-职业刻板印象的内隐联想测验结果的对比进行实验。研究表明：观点采择策略的干预效果明显,刻板印象的内隐效应在明显地减弱;在性别-职业刻板印象上存在内隐效应,而且没有性别差异,无论在正常情况下还是受到观点采择策略的干预,男女被试均表现出同等的情形,说明内隐刻板印象具有一定的适应性,在内隐的和无意识的水平上观点采择无法完全消除刻板印象;实验证明研究设计的性别-职业刻板印象的IAT纸笔测验版本是可行的。     

Thought translation, tennis and Turing tests in the vegetative state

Brain damage can cause massive changes in consciousness levels. From a clinical and ethical point of view it is desirable to assess the level of residual consciousness in unresponsive patients. However, no direct measure of consciousness exists, so we run into the philosophical problem of other minds. Neurologists often make implicit use of a Turing test-like procedure in an attempt to gain access to damaged minds, by monitoring and interpreting neurobehavioral responses. New brain imaging techniques are now being developed that permit communication with unresponsive patients, using their brain signals as carriers of messages relating to their mental states.     

Properties of bootstrap tests for N‐of‐1 studies

N‐of‐1 study designs involve the collection and analysis of repeated measures data from an individual not using an intervention and using an intervention. This study explores the use of semi‐parametric and parametric bootstrap tests in the analysis of N‐of‐1 studies under a single time series framework in the presence of autocorrelation. When the Type I error rates of bootstrap tests are compared to Wald tests, our results show that the bootstrap tests have more desirable properties. We compare the results for normally distributed errors with those for contaminated normally distributed errors and find that, except when there is relatively large autocorrelation, there is little difference between the power of the parametric and semi‐parametric bootstrap tests. We also experiment with two intervention designs: ABAB and AB, and show the ABAB design has more power. The results provide guidelines for designing N‐of‐1 studies, in the sense of how many observations and how many intervention changes are needed to achieve a certain level of power and which test should be performed.