Spatial accuracy demand in aiming movements: kinematic analysis of subtended angle and tolerance width

Subtended angle has been assumed to be an important factor in both response programming time and kinematic characteristics of aiming movements. Support for this assumption has come mainly from studies in which circular targets have been used. However, with circular targets, the subtended angle covaries with the size of the target in the principal direction of the movement (tolerance width). The purpose of this study was to examine the effects of tolerance width and subtended angle on aiming movement with multiple targets. Participants first hit a 5-cm-diameter circular target located 8 cm to the left of a starting position and then moved another 8 cm left to hit either a 5-cm diameter circular target or a 5- x 1-cm rectangular target oriented either horizontally or vertically, depending on the condition. Analysis showed that reaction times and movement times were longer for the vertical rectangular target, which had a smaller tolerance width than the other two targets. In addition, the vertical rectangular target also showed a greater percentage of secondary-submovement trials, lower movement velocity, and higher peak vertical displacement. Overall, the results indicate that the tolerance width of the target may impose more constraints on aiming movements than subtended angle.     

新员工入职期望及其影响因素

以403名企业新员工为调查对象,使用Lisrel8.20对新员工入职期望问卷(NPEQ)的结构进行验证,并建立了入职期望产生的结构方程模型。结果显示:①入职期望三维度结构得到初步验证,NPEQ具有良好的结构效度。②工作、团队和企业期望之间存在显著正相关,工作期望是入职期望中最重要的维度。③在校经历对工作期望有正向的影响作用,自身压力对工作期望有负向的影响作用;团队期望受在校经历和企业期望的直接影响;企业期望同时受到招聘过程、在校经历、自身压力和他人期望的影响。     

企业员工工作价值观与组织公民行为的关系研究

本研究旨在探讨企业员工工作价值观与组织公民行为的关系。用工作价值观调查表、中国组织公民行为量表对525名企业员工进行了问卷调查,结果发现：整体工作价值观与整体组织公民行为存在着显著性相关;工作价值观的能力警曼等璧翌组织公民行为的公司认同、个人主动性、保护公司资源因素有显著正向影响;工作价值观的地位因素对组织公民行为的公司认同、同事间的利他行为、个人主动性因素有显著正向影响。     

"火神庙"非祆庙辨

入华火袄教研究领域的部分学者在论及宋元以后的火祆教遗痕时,不同程度地存在着将祆神与中国传统火神相混淆的情况.这种误解最初始自我国火袄教研究的奠基者陈垣先生,但遗憾的是,后来的研究者不但没有将陈垣先生的这一未及深入研究的判断予以厘清,部分学者反而完全混淆了袄神与中国传统火神的区别,以致于将方志文献中所见中国传统的火神庙误作祆庙了.本文结合文献资料对此进行了详细考辨,指出宋元以后祆神的内涵虽然发生了很大变化,但人们并没有将其与中国传统的火神相混淆,明清方志文献中所见的火神庙实是祭祀中国传统火神的场所,与祆神祆庙无涉.学者们实是因自身认识不足而致误,本文因而进一步分析了致误的原因.     

Think, blink or sleep on it? The impact of modes of thought on complex decision making

This paper examines controversial claims about the merit of "unconscious thought" for making complex decisions. In four experiments, participants were presented with complex decisions and were asked to choose the best option immediately, after a period of conscious deliberation, or after a period of distraction (said to encourage "unconscious thought processes"). In all experiments the majority of participants chose the option predicted by their own subjective attribute weighting scores, regardless of the mode of thought employed. There was little evidence for the superiority of choices made "unconsciously", but some evidence that conscious deliberation can lead to better choices. The final experiment suggested that the task is best conceptualized as one involving "online judgement" rather than one in which decisions are made after periods of deliberation or distraction. The results suggest that we should be cautious in accepting the advice to "stop thinking" about complex decisions.     

进化心理学取向与当代心理学

进化心理学以进化论为理论基础,用适应的观点来解释人类的心理机制及其行为方式。本文通过阐明进化心理学的产生背景,重点论述了进化心理学的思维方式及其与心理学主要学科分支的联系,并指出了进化心理学对当代心理学发展的影响。     

中小学数学教师数感内隐观的调查研究

该研究以131名中小学数学教师为被试,采用调查分析的方法,编制了数感结构选项表,考察了中小学数学教师的数感结构内隐观。结果显示：中小学数学教师的数感结构内隐观所涉及的范围广泛,经因素分析可以把它概括为6个因素。它们分别是：数学运算、数学认知因素、非书面计算能力、理解数与运算的意义、对数的认识与直觉、数符号表征能力。     

个体自尊与婚姻满意度关系的模型构建

本研究探讨了个体的自尊、自我保护倾向、对伴侣的回应方式、承诺与删因满意度的关系。结果表明：自尊通过对伴侣的回应方式和自我保护影响着个体的承诺和蜊因满意度;自尊、对伴侣的回应方式和自我保护通过承诺影响着个体的婚姻满意度。本研究还构建了自尊与婚姻满意度关系的理论模型。     

刍议现代宗教的类科学取向

在科学与宗教的关系上,时下学界的时髦说法是"借助于相关力量来平衡现代科学技术的发展,克服科学主义所造成的文化困境",认为"现代文明的一个突出特征就在于,随着现代科技文明‘这种     

Multidimensional CAT Item Selection Methods for Domain Scores and Composite Scores: Theory and Applications

Multidimensional computer adaptive testing (MCAT) can provide higher precision and reliability or reduce test length when compared with unidimensional CAT or with the paper-and-pencil test. This study compared five item selection procedures in the MCAT framework for both domain scores and overall scores through simulation by varying the structure of item pools, the population distribution of the simulees, the number of items selected, and the content area. The existing procedures such as Volume (Segall in Psychometrika, 61:331?C354, 1996), Kullback?CLeibler information (Veldkamp & van?der Linden in Psychometrika 67:575?C588, 2002), Minimize the error variance of the linear combination (van?der Linden in J. Educ. Behav. Stat. 24:398?C412, 1999), and Minimum Angle (Reckase in Multidimensional item response theory, Springer, New York, 2009) are compared to a new procedure, Minimize the error variance of the composite score with the optimized weight, proposed for the first time in this study. The intent is to find an item selection procedure that yields higher precisions for both the domain and composite abilities and a higher percentage of selected items from the item pool. The comparison is performed by examining the absolute bias, correlation, test reliability, time used, and item usage. Three sets of item pools are used with the item parameters estimated from real live CAT data. Results show that Volume and Minimum Angle performed similarly, balancing information for all content areas, while the other three procedures performed similarly, with a high precision for both domain and overall scores when selecting items with the required number of items for each domain. The new item selection procedure has the highest percentage of item usage. Moreover, for the overall score, it produces similar or even better results compared to those from the method that selects items favoring the general dimension using the general model (Segall in Psychometrika 66:79?C97, 2001); the general dimension method has low precision for the domain scores. In addition to the simulation study, the mathematical theories for certain procedures are derived. The theories are confirmed by the simulation applications.