Flexible Computerized Adaptive Tests to Detect Misconceptions and Estimate Ability Simultaneously

The Scaling Individuals and Classifying Misconceptions (SICM) model is an advanced psychometric model that can provide feedback to examinees’ misconceptions and a general ability simultaneously. These two types of feedback are represented by a discrete and a continuous latent variable, respectively, in the SICM model. The complex structure of the SICM model brings difficulties in estimating both misconception profile and ability efficiently in a linear test. To overcome this challenge, this study proposes a flexible computerized adaptive test (FCAT) design as a new test delivery method to increase test efficiency by administering an individualized test to examinees. We propose three item selection methods and two transition criteria to determine adaptive steps based on the needs of estimating one or two latent variables. Through two simulation studies, we demonstrate how to select an appropriate item selection method for an adaptive step and what transition criterion should be used between two adaptive steps. Results reveal the combination of the item selection method and the transition criterion could improve the estimation accuracy of a specific latent variable to a different extent and thus provide further guidance in designing an FCAT.     

Learning By Tracing Worked Examples

Cognitive load theorists have only recently begun to test the role of the body in learning. Tracing the index finger over the surface of instructions while reading, an embodied pedagogy based on Montessori's sandpaper letters, may hold substantial promise for learning by reducing cognitive load. Two experiments tested whether students who traced their index fingers against paper‐based worked example instructions in triangle geometry (Experiment 1; N = 52) and order of operations (Experiment 2; N = 54) would perform better on a subsequent test than students who only studied the materials visually. Students in the tracing condition outperformed the non‐tracing condition on transfer problems in both Experiment 1 (d = .78) and Experiment 1 (d = .50), but hypotheses regarding self‐reports of cognitive load during testing were not supported. Implications for research and practice are discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

学校群体构成对流动儿童数学学业成就的影响:一项多水平分析

学校群体构成是影响儿童学业成就的重要环境变量,并对流动儿童具有不同于本地儿童的特殊效应。本研究数据来自"中国儿童青少年心理发育特征调查"项目建立的数据库,被试是我国发达地区32个区县141所学校的4960名2-6年级儿童,流动儿童所占比例为14.5%。结果发现:(1)无论流动儿童还是本地儿童,学校社会经济地位越高,儿童的数学学业成就越好;学校流动儿童比例对儿童的数学学业成就没有影响;(2)学校社会经济地位越高,短期流动儿童相对于本地儿童的数学学业劣势越大;(3)学校流动儿童比例越高,长期流动儿童相对于本地儿童的数学学业劣势越小。     

Selective spatial enhancement: Attentional spotlight size impacts spatial but not temporal perception

An important but often neglected aspect of attention is how changes in the attentional spotlight size impact perception. The zoom-lens model predicts that a small (“focal”) attentional spotlight enhances all aspects of perception relative to a larger (“diffuse” spotlight). However, based on the physiological properties of the two major classes of visual cells (magnocellular and parvocellular neurons) we predicted trade-offs in spatial and temporal acuity as a function of spotlight size. Contrary to both of these accounts, however, across two experiments we found that attentional spotlight size affected spatial acuity, such that spatial acuity was enhanced for a focal relative to a diffuse spotlight, whereas the same modulations in spotlight size had no impact on temporal acuity. This likely reflects the function of attention: to induce the high spatial resolution of the fovea in periphery, where spatial resolution is poor but temporal resolution is good. It is adaptive, therefore, for the attentional spotlight to enhance spatial acuity, whereas enhancing temporal acuity does not confer the same benefit.     

面孔可信度对助人行为的影响：依恋安全的调节作用

分别从特质依恋和状态依恋角度考察施助者的依恋安全在求助者面孔可信度与助人行为之间的调节作用。结果发现：(1)求助者面孔可信度影响助人行为, 面孔可信度高的求助者得到的助人行为显著多于面孔可信度低的求助者; (2)施助者的依恋安全调节求助者面孔可信度与助人行为之间的关系, 安全依恋能有效缓冲低面孔可信度带来助人行为下降的趋势。本研究结果表明依恋安全有助于提升社会安全感和促进亲社会行为, 因此应注重依恋安全的培养。     

控制理论:诠释毕生发展的新视点

控制发展理论的基本概念包括初级控制与次级控制。初级控制指的是指向外部环境的行为和改变环境以适应个体需求的企图：次级控制的目标是指向个体自身,目的是将初级控制的丧失最小化、维持并提高当前的初级控制水平。次级控制一方面帮助个体应对初级控制的失败,另一方面通过选择功能提高初级控制水平。与次级控制相比,初级控制对个体发展的适应性机是居首位的。该详细阐述了两种控制的含义、维度模式及其相互作用,并从毕生发展的角度讨论了控制的发展特点。     

阅读过程眼动控制理论模型:E-Z Reader

简要介绍了一个新近出现的阅读过程中的眼动控制理论模型——E-Z Reader模型,并对该模型的特点进行了深入讨论。文中还涉及了其它几个相关的理论模型．如Morrison(1984)模型和Mr．Chips：理想观察者模型等。最后就E-Z Reader在中文阅读过程认知研究领域中的应用前景进行了讨论。     

诚信内在结构解析

对诚信的内在结构可有多种解析。从所属领域角度,诚信可以被分为心诚、言诚、行诚三个层面。这三个层面相互依赖、相互作用：心诚是言诚和行诚的内在依据,言诚和行诚是心诚的必要外化,而言诚和行诚则相互促进。从所涉对象角度,诚信可以被分为诚己、诚人、诚群三个维度。这三个维度彼此相关、层层推进：诚己是诚人和诚群的必要前提,诚人是诚己的必然延伸和必要确证,而诚群则是诚人的合乎逻辑的扩展。     

Bioethical issues in biostatistical consulting: development of a survey

To develop a survey, the Bioethical Issues in Biostatistical Consulting Questionnaire, for investigating bioethical issues in analysis, a comprehensive literature review was conducted to specify areas of bioethics. Through a focus group study and the evaluation by 10 biostatisticians, the questionnaire was constructed. Validation must involve a panel of experts. Now, test-retest reliability and factor analysis should be conducted on a group of eligible subjects.     

Ethnic differences in endorsement of the Protestant work ethic: the role of ethnic identity and perceptions of social class

The authors examined ethnic differences in endorsement of the Protestant work ethic (PWE; M. Weber, 1905) among Black (n = 96) and White (n = 149) college students and tested whether differences in ethnic identity and perceptions of social class mediated the relationship between ethnicity and the endorsement of PWE values. Blacks were higher in levels of ethnic identity, more likely to see themselves as working or middle class, and less likely to endorse the PWE. Only perceptions of social class partially mediated the relationship between ethnicity and PWE values. The authors concluded that perception of social class is an important construct that might influence the cultural psychology of different ethnic groups. The authors recommended further research involving PWE and other cultural variables.