Models with discrete latent variables for analysis of categorical data: A framework and a MATLAB MDLV toolbox

Studies in the social and behavioral sciences often involve categorical data, such as ratings, and define latent constructs underlying the research issues as being discrete. In this article, models with discrete latent variables (MDLV) for the analysis of categorical data are grouped into four families, defined in terms of two dimensions (time and sampling) of the data structure. A MATLAB toolbox (referred to as the “MDLV toolbox”) was developed for applying these models in practical studies. For each family of models, model representations and the statistical assumptions underlying the models are discussed. The functions of the toolbox are demonstrated by fitting these models to empirical data from the European Values Study. The purpose of this article is to offer a framework of discrete latent variable models for data analysis, and to develop the MDLV toolbox for use in estimating each model under this framework. With this accessible tool, the application of data modeling with discrete latent variables becomes feasible for a broad range of empirical studies.     

群体独特性对群际偏差的影响

群体独特性影响群体认同,较高或较低的群体独特性都可能引发群际偏差,分别称为“反射式独特性假说”与“反应式独特性假说”.调节作用研究揭示,在较低群体认同或上位群体分类凸显时,群体独特性越高越易引发群际偏差;而在较高群体认同时,独特性越低越易引发群际偏差.动机作用的研究表明,在具有群际竞争目标时,这两种过程分别受工具性动机与认同性动机的驱动.情绪与认知的中介作用研究显示,在低独特性条件下,社会身份复杂性与焦虑情绪可起中介作用引发群际偏差.     

基于潜在类别分析的6~15岁儿童平衡秤任务认知规则探索

本研究使用自编平衡秤测验测试468名6~15岁儿童,通过潜在类别分析对认知规则进行分类。结果发现,被试使用了规则Ⅰ、规则Ⅰ'、规则Ⅱ、补偿规则、规则Ⅳ、距离优势规则等六种规则;6~9岁儿童主要使用规则Ⅰ;10~13岁儿童主要使用补偿规则;14岁以上儿童主要使用规则Ⅳ;13岁到14岁之间,使用规则Ⅳ的儿童数量呈跳跃式增加。与规则评估技术相比,潜在类别分析用于认知规则研究具有明显优势,最后对运用此方法的前提假设与局限进行了讨论。     

Abusive supervision and subordinate emotional labor: The moderating role of openness personality

We investigated the differential relationships between abusive supervision and two emotional labor strategies used by subordinates (surface acting and deep acting). Furthermore, we examined whether subordinates' openness personality moderated the above relationships. Using the questionnaire survey method, we collected data from 210 employees in China. The results of hierarchical regression showed that abusive supervision related positively to surface acting (regulating facial expression) but negatively to deep acting (regulating inner feeling). Openness personality moderated the relationships between abusive supervision and the two emotional labor strategies, such that the relationships were stronger for employees with lower openness. Findings of our study contribute to the literature on workplace emotions and negative leadership.     

The impact of the opinions of others on variety‐seeking behavior

One reason for consumer variety‐seeking behavior is interpersonal motivation. Building on previous theories, we suggest that the different information types of interpersonal sources influence the variety‐seeking behavior of individuals. Two laboratory experiments are conducted to examine the influence of the opinions of others on such behavior. The results support the author's contention that to derive more enjoyment from a shared product, an individual will make choices congruent with the opinions of others in online information. The managerial implications and study limitations are also discussed.     

Cross-Cultural Generalizability of the Reactive–Proactive Aggression Questionnaire (RPQ)

In this study, we assessed the cross-cultural generalizability of the Reactive–Proactive Aggression Questionnaire (RPQ) and tested the hypotheses that boys show higher levels of proactive aggression with increasing age and that a two-factor (reactive–proactive) structure will be observed in an East Asian population. We administered the RPQ to 5,615 male and female 11- to 15-year-old schoolchildren. CFA demonstrated a good fit of the two-factor reactive–proactive model. Proactive aggression increased significantly with age in boys but not girls, whereas reactive aggression showed no gender difference and only a minimal age increase. Results suggest the presence of meaningful differences between these aggression subtypes and the generalizability of the RPQ in an East Asian population.     

青少年多维自我控制量表的编制及信效度检验

编制与多维自我控制理论相适应的,用于测量中国青少年多维自我控制的量表并检验其信、效度。通过查阅文献、专家评估等方式形成初测问卷; 以初中生和高中生为被试,选取1424名被试进行初测,681名被试正式施测。主动性自我控制量表包含情绪调节、目标维持和自我控制策略3个维度,抑制性自我控制量表包含注意力控制、冲动控制和情绪控制3个维度。两个量表均具有良好的结构效度、效标关联效度和信度。综上所述,青少年多维自我控制量表中的主动性、抑制性自我控制量表均符合测量学标准,可用于评估中国青少年的自我控制能力。     

Managing Coworker Assistance Through Organizational Identification

This article investigates how different sources of management support promote coworker helping behavior in organizations. We contend that senior management, managers responsible for Human Resource practices, and team leaders contribute to coworker assistance by encouraging employees to identify with the organization. Based on survey evidence drawn from nine Australian (N?=?1,349 employees) and six Chinese firms (N?=?828 employees), and using structural equation modeling, we show that organizational identification mediates the effects of perceived support from these three sources on coworker assistance. Differences in the strength of relationships between the variables are highlighted and discussed.     

Disclinations and rotational deformation in fine-grained materials

A theoretical model is presented which describes a new mechanism of plastic deformation in fine-grained materials. In the framework of the model, rotational deformation occurs via motion of dipoles of grain-boundary disclinations and is associated with the emission of lattice dislocations from grain boundaries into adjacent grain interiors. Ranges of defect system parameters are identified in which the disclination motion is energetically favourable. It is shown that the mechanism can contribute to plastic flow in fine-grained materials prepared by highly non-equilibrium methods such as ball milling, severe deformation and high-pressure compaction.     

Optimized many body potential for fcc metals

A formalism for optimized many body (OMB) potentials to describe the interatomic interactions in fcc metals is described. The OMB approach is based on the Tersoff potential, widely used to describe covalently bonded materials, and is closely related to the charge optimized many body (COMB) potential formalism for oxides. OMB extends to first nearest neighbors only, and employs a third-order Legendre polynomial to distinguish fcc and hcp structures, the strength of which can be adjusted to match the intrinsic stacking fault energy to arbitrary precision. The potential also predicts generalized stacking fault energy curves that are in very close agreement to the values determined from electronic-structure calculations. This potential is thus well-suited to investigating mechanical properties such as plastic deformation at the atomic scale.