特征呈现方式对类别知觉表征的影响*

两个实验采用阻碍效应范式探讨了特征的呈现方式对类别知觉表征的影响。研究结果发现在阻碍效应范式中,改变特征的呈现方式引发了不同的类别知觉表征方式;当固定样例特征的呈现位置时,引发了基于样例整体相似性的表征;而随机样例特征的呈现位置时,引发了基于样例特征的解析表征。该结果支持了类别学习的多系统理论。     

词素认知加工的理论模型及研究范式

自上世纪七十年代以来,随着视觉词汇加工领域的研究,多词素词的认知加工引起了研究者的广泛关注。文章对三十年来的研究进行综述和系统梳理,重点讨论词素在多词素词认知加工中的作用。虽然对词素加工的本质 (形或义的激活)仍未达成共识,但词素语义能否在多词素词加工的早期阶段得到激活已成为现今研究的焦点问题之一。相关研究大致可分为三个对立阶段：分解论与整体论之争、词素形式论与语义论之争、先形后义激活论与形义同时激活论之争。本文最后指出该研究领域尚未解决的问题并对未来研究进行了展望。     

航线飞行员危险态度测量及对驾驶安全行为的影响

为了探讨现代航线飞行员危险态度特点及其与驾驶安全行为的关系,采用文献分析、问卷调查和专家访谈,编制了中国文化背景下航线飞行员危险态度问卷,并对中国南方航空公司257名飞行员进行调查。结果发现,自信、冲动性、男子气概、焦虑、服从性和风险意识等因素能解释飞行员危险态度总体变异的60.275%,同时对驾驶安全行为产生显著负向影响。这一结果表明六维结构模型具有较好的信度和效度,可以作为现代航线飞行员驾驶安全行为评估的预测指标。     

Information matrix estimation procedures for cognitive diagnostic models

Two new methods to estimate the asymptotic covariance matrix for marginal maximum likelihood estimation of cognitive diagnosis models (CDMs), the inverse of the observed information matrix and the sandwich-type estimator, are introduced. Unlike several previous covariance matrix estimators, the new methods take into account both the item and structural parameters. The relationships between the observed information matrix, the empirical cross-product information matrix, the sandwich-type covariance matrix and the two approaches proposed by de la Torre (2009, J. Educ. Behav. Stat., 34, 115) are discussed. Simulation results show that, for a correctly specified CDM and Q-matrix or with a slightly misspecified probability model, the observed information matrix and the sandwich-type covariance matrix exhibit good performance with respect to providing consistent standard errors of item parameter estimates. However, with substantial model misspecification only the sandwich-type covariance matrix exhibits robust performance.     

Symmetric Contingency Logic with Unlimitedly Many Modalities

Journal of Philosophical Logic - The completeness of the axiomatization of contingency logic over symmetric frames has been thought of as a nontrivial job, the unimodal case of which cannot be...     

Difference to One: A Nuanced Early Chinese Account of Tong

The graph tong同and its associated concepts, such as da-tong (Great tong大同) and xuan-tong (mystic or dark tong玄同), have played important roles in the development of Chinese philosophy. Yet tong has received scant attention from either western or eastern scholarships. This paper is a first attempt to remedy such regret. Unlike usual understandings of tong as sameness or unity, this paper presents a nuanced account from early China, that is, ‘difference to one,’ a definition from the Mozi墨子. This definition can be supported from etymological, textual, and lexical evidence. ‘Difference to one’ should not be solely attributed to a Mohist understanding; it in fact represents a common understanding of tong across philosophical streams in early China. This nuanced account provides new insights into the concept of tong in early philosophical texts, and furthermore breaks solid grounds for further studies of tong and its associated concepts.     

Reducing faking on personality tests: Testing a new faking‐mitigation procedure in a U.S. job applicant sample

Faking has remained a major concern for organizations using self‐report personality measures for selection. Scholars recenlty developed a new middle‐warning faking‐mitigation procedure. The present replication study was the first field test in the United States using 193 applicants for an entry‐level position in a New York‐based consulting firm. Results replicated most of Fan et al.'s findings including (a) the middle‐warning significantly lowered fakers' personality scores over retesting, whereas the control message had little influence on nonfakers; (b) the above warning effect carried over to personality scales that were not retested; and (c) the persistent tendency of potential fakers rising to the top of personality score distribution was weakened. In addition, applicants' perceptions were not being negatively affected by the warning.     

现实及网络社会排斥与大学生抑郁的关系:自我控制的中介作用

对1077名大学生进行调查,探讨现实、网络社会排斥和自我控制与大学生抑郁的关系。结果显示:(1)现实社会排斥与网络社会排斥在发生频率上没有显著差异;网络社会排斥、现实社会排斥、自我控制以及抑郁两两之间均呈显著正相关关系;(2)现实社会排斥不仅能够对抑郁产生直接的预测作用,而且能够通过自我控制的中介作用对抑郁产生影响;(3)网络社会排斥对抑郁的直接预测作用不显著,只能够通过自我控制的中介作用对抑郁产生影响。     

Influence of plastic strain localisation on the mechanical properties of metal matrix composites

The aim of the present study is to reveal the most critical underlying factor influencing the mechanical properties of metal matrix composites (MMCs). It is shown that the mechanical properties of MMCs are essentially governed by the degree of strain localisation during plastic deformation. In other words, the MMCs exhibit superior mechanical performance only if the strain localisation is obviously inhibited and the accumulated stresses can be effectively transferred out. The work provides a new perspective in guiding the design of next-generation high-performance MMCs by suppressing the strain localisation as far as possible.     

HO-GDINA模型的EM算法参数估计

Generalized DINA Model(G-DINA)为认知诊断模型提供了一个一般性的理论框架,而高阶诊断模型不仅能描述被试的总体水平,还能描述被试对属性的掌握情况(微观的认知状态)以及被试掌握属性与能力的关系,提供更丰富的信息。如果能把这两者结合起来,可能对实际诊断工作的操作有较大帮助。文章首先对考虑高阶结构的整合性模型——HO-GDINA模型的形式进行讨论,探讨其参数估计EM算法的实现,并用模拟过程对模型的估计精度进行研究,结果验证了HO-GDINA的EM算法的正确性,并且说明该算法对该模型有较高估计精确度。然后用饱和模型在约束条件下的特殊形式HO-DINA模型对"分数减法"这一经典数据进行EM算法参数估计和具体分析,展示了HO-GDINA在实际情况中的具体使用,并与de la Torre之前用MCMC估计算法得到的研究结果做比较,基本一致,进一步表明HO-GDINA模型的参数估计EM算法在实际情境中的特殊形式下仍然适用。