基于属性掌握概率的认知诊断计算机化自适应测验选题策略

在认知诊断计算机化自适应测验(CD-CAT)中, 被试对每个属性的掌握概率更直接地反映了被试能力的当前估计值。因此, 基于被试的属性掌握概率来构建选题策略, 选择最能改变被试属性掌握概率的题目作为下一个测验项目, 这应该是一个值得尝试的方案。本文借鉴已有相关研究的数据生成模式进行探索, 模拟实验结果表明：假设属性间相互独立,在定长(长度为16)、变长(长度为16或后验属性掌握模式概率达到0.8)以及短测验(长度分别为4、6、8、10)的情况下, 基于属性掌握概率的选题策略PPWKL和PHKL有较好的分类准确率, 在题目曝光率, 题库使用均匀性等方面也有较好的表现; 与研究较多的PWKL、HKL等策略相比, 也略有优势; 当属性间存在不同程度的相关时, 在定长、变长以及较短的测验条件下, 基于PHKL和MI的测验对知识状态估计精度较好, 基于PPWKL和PHKL的测验综合表现占优。     

结构、任务类型和导航对超文本信息搜索的影响

通过两个实验考察了结构、任务类型和导航对超文本信息搜索绩效的影响。实验一采用2（层次结构,混合结构）×2（特定任务,关系任务）的被试内设计,探讨了超文本结构和任务类型对信息搜索的影响;实验二在实验一的基础上,采用2（层次结构,混合结构）×2（有导航图,无导航图）的被试内设计,考察超文本结构和导航对关系任务信息搜索的影响。结果表明：（1）超文本结构和任务类型对信息搜索绩效有显著的交互影响,就关系任务而言,混合结构超文本优于层次结构超文本,但就特定任务而言,两者无显著差异;（2）导航对信息搜索行为有指导作用,尤其对层次结构超文本有利;（3）两种主观指标的结果与客观指标存在一定程度的一致性。     

一致性、相关性对记忆生存优势效应的影响

对词语进行生存加工能提高记忆成绩,这种记忆的生存优势效应已得到不少研究的验证,且大多数研究表明生存优势是一种独特的编码方式(Nairne&Pandeirada,2011)。但是,Butler等人(2009)的研究结果表明实验中生存加工带来的记忆优势可能是一致性效应(即编码任务与编码的材料之间具有一致性)的作用。本文在2个实验中选用与生存和抢劫加工条件相关程度不同的词(高中低)为实验材料,采用生存加工、抢劫加工、愉悦度和有意学习为实验条件,研究一致性和相关性在记忆生存优势中的作用。结果发现:(1)生存条件下的记忆效果显著优于愉悦度条件和有意学习条件,这说明的确存在记忆的生存优势效应;(2)高生存相关词在生存加工条件下产生了记忆优势,而中、低生存相关词在2种加工条件下记忆成绩差异不显著,这说明加工条件的一致性只在一定程度上影响着记忆的生存优势效应;(3)词语自身的生存相关性没有表现出较强的记忆优势,当然这也可能与实验材料的词频有关。研究结果支持了Nairne和Pandeirada(2011)的观点。     

"时间就是金钱"一语寻源

“时间就是金钱”一语,当第一次被写在深圳街头之时,对我们中国人来说不啻是一次潮流的冲击。然而,在这个赤裸的时间与金钱的等式中,的确蕴含着一种强烈的效率意识,此话已被人们所认同。据史证,此话缘自被誉为“最有智慧的美国人”——本杰明·富兰克林。     

简明中学生心理素质量表(健康版)的修订及信效度研究

该研究在文献分析和理论研究的基础上,通过纵向研究与多轮横向研究考察原中学生心理素质量表的因子及题目与心理健康指标的关系,修订出了3维度12因子共36道题的简明中学生心理素质量表(健康版),包括元认知、目的性和开放性3因子的认知品质分量表,自信性、自控性和乐观性3因子的个性品质分量表,以及职业适应、社会适应、人际适应、情绪适应、学习适应和生理适应6因子的适应性(能力)分量表。修订后的量表与原量表总分之间的相关为0.939,其它项目分析、探索性因素分析、验证性因素分析、信度分析、效度分析等结果均达到了心理测量学的要求。     

有关具身认知的三种理论模型

具身认知强调了身体在认知中的关键作用,主张身体的构造和状态、身体的物理属性及其大脑与身体的特殊感觉—运动通道对认知的形成产生了根本影响。具身认知的相关理论虽然直接或者间接承认身体对心智的塑造关系,但是存在一些观点的不一致,导致具身认知理论难以统一到相同的框架上来,具身认知大致可以归结为三种模型:概念隐喻理论,知觉符号理论和感知运动模拟隐喻理论。     

男性与女性对不同性别和种族面孔识别的差异

研究以大学生为被试,采用延时匹配任务,旨在探讨性别和种族因素对面孔识别的影响,结果发现:(1)男、女被试对女性面孔识别的反应时及正确率均优于男性面孔;(2)被试对不同种族女性面孔识别的优势存在差异,被试对高加索女性面孔的识别表现为更高的正确率,而对中国女性面孔的识别表现为更快的识别速度;(3)面孔种族是导致女性面孔识别优势的重要影响因素。研究表明,面孔识别受到面孔种族、面孔性别和被试性别共同作用的影响。     

Bilingualism alters children's frontal lobe functioning for attentional control

Bilingualism is a typical linguistic experience, yet relatively little is known about its impact on children's cognitive and brain development. Theories of bilingualism suggest that early dual‐language acquisition can improve children's cognitive abilities, specifically those relying on frontal lobe functioning. While behavioral findings present much conflicting evidence, little is known about its effects on children's frontal lobe development. Using functional near‐infrared spectroscopy (fNIRS), the findings suggest that Spanish–English bilingual children (n = 13, ages 7–13) had greater activation in left prefrontal cortex during a non‐verbal attentional control task relative to age‐matched English monolinguals. In contrast, monolinguals (n = 14) showed greater right prefrontal activation than bilinguals. The present findings suggest that early bilingualism yields significant changes to the functional organization of children's prefrontal cortex for attentional control and carry implications for understanding how early life experiences impact cognition and brain development.     

The Benefits of Transcending Self-Interest: Examining the Role of Self-Transcendence on Expressive Suppression and Well-Being

Research has taken a dim view of regulating emotions via expressive suppression. However, the impact of suppression may vary according to individuals’ interpersonal orientation. In two studies, we examined the effects of suppression under self-transcendent and self-interest orientations. Results revealed that (1) in everyday life, although dispositional suppression was related to lower psychological well-being, the costs associated with suppression were buffered among individuals with a self-transcendence orientation (Study 1); and (2) among individuals primed with a self-transcendence orientation, suppression of negative emotions in an interpersonal conflict situation led to lower levels of anger-related emotions and higher levels of perceived relational quality compared to emotional expression; however, among individuals primed with a self-interest orientation, suppression led to higher levels of anger-related emotions and lower levels of perceived relational quality compared to expression (Study 2). Together, results from the present study highlight the role of interpersonal orientation in moderating the effects of suppression on well-being.     

Empathy‐Related Responding in Chinese Toddlers: Factorial Structure and Cognitive Contributors

The critical role of the second year of life in the development of empathy is well accepted by psychologists. However, the developmental trends of the different components of empathy and the potential factors underlying these components during this critical period remain unclear. Eighty‐four Chinese toddlers in the second year of life participated in the present study. Empathy‐related responses were observed during three simulated procedures performed by each child's primary caregiver, the experimenter and a baby doll. An exploratory factor analysis was used to identify the different components of empathy. The shared representation of the self and others was measured using the Tasks for the Observation of Self‐Concept, self/other awareness was measured with a series of mirror tests and inhibitory control was measured using the Cylinder Inhibitory Control Task. The results showed that the empathy of Chinese toddlers contains three factors: sympathy, personal distress and orientation. Potential cognitive factors contribute to the different components of empathy through both independent and joint effects. © 2016 The Authors Infant and Child Development Published by John Wiley & Sons, Ltd.