Internet addiction,adolescent depression,and the mediating role of life events: Finding from a sample of Chinese adolescents

The aim of this study is to examine the mediating role of life events in the relation between Internet addiction and depression using an adolescent sample in China. A total of 3507 urban adolescent students were asked to complete the questionnaires including Young's Internet Addiction Scale, Adolescent Self‐Rating Life Events Checklist, and Center for Epidemiologic Studies Depression Scale, Parent–Child Conflict Tactics Scales, and demographic characteristics. Path analyses demonstrated that life events fully mediated the relationship between Internet addiction and adolescent depression. Specificity for the mediating role of life events was demonstrated in comparison to alternative competing mediation models. The findings support our hypothesis that the effect of Internet addiction on adolescent depression is mediated by the life events. Further research is required to test the temporal relationship between Internet addiction and adolescent depression and explore mechanisms underlying the pathways leading to adolescent depression.     

Self‐construal and students’ math self‐concept,anxiety and achievement: An examination of achievement goals as mediators

This study examines the role of self‐construal in student learning by testing a mediation model: through math achievement goals, self‐construal predicts math self‐concept and anxiety, which further predict math achievement. A sample of 1196 students from 104 secondary classes in Singapore took a survey and a math achievement test. The results from multi‐group structural equation modelling support measurement invariance and equal path coefficients in the mediation model between boys and girls. Interdependent self‐construal positively predicted mastery approach and avoidance goals, through which interdependent self‐construal had a positive total indirect effect on math anxiety. Independent self‐construal positively predicted mastery approach, performance approach and performance avoidance goals, and through the two approach goals, high independent self‐construal was associated with high math self‐concept. Overall, self‐construal was not associated with math achievement. The findings enhance our understanding of achievement motivation from a sociocultural perspective and help explain East Asian students’ relatively higher anxiety and lower self‐concept in comparison with their Western counterparts as reported in international studies.     

题组反应理论及其在中学英语考试中的应用研究

题组作为众多测验中的一种常见题型,由于项目间存在一定程度的依赖性而违背了局部独立性假设,若用项目反应模型进行参数估计将会出现较大的偏差.题组反应理论将被试与题组的交互作用纳入到模型中,解决了项目间相依性的问题.笔者对题组反应理论的发展、基本原理及其相关研究进行了综述,并将其应用在中学英语考试中.与项目反应理论相对比,结果发现：（1）题组反应模型与项目反应模型在各参数估计值的相关系数较强,尤其是能力参数和难度参数;（2）在置信区间宽度的比较上,题组反应模型在各个参数上均窄于项目反应模型,即题组反应模型的估计精度优于项目反应模型.     

Action representations activated by task‐irrelevant information: Is it really irrelevant?

Accessing action knowledge is believed to rely on the activation of action representations through the retrieval of functional, manipulative, and spatial information associated with objects. However, it remains unclear whether action representations can be activated in this way when the object information is irrelevant to the current judgment. The present study investigated this question by independently manipulating the correctness of three types of action‐related information: the functional relation between the two objects, the grip applied to the objects, and the orientation of the objects. In each of three tasks in Experiment 1, participants evaluated the correctness of only one of the three information types (function, grip or orientation). Similar results were achieved with all three tasks: “correct” judgments were facilitated when the other dimensions were correct; however, “incorrect” judgments were facilitated when the other two dimensions were both correct and also when they were both incorrect. In Experiment 2, when participants attended to an action‐irrelevant feature (object color), there was no interaction between function, grip, and orientation. These results clearly indicate that action representations can be activated by retrieval of functional, manipulative, and spatial knowledge about objects, even though this is task‐irrelevant information.     

Deformation behaviour and 6H-LPSO structure formation at nanoindentation in lamellar high Nb containing TiAl alloy

Microstructure and deformation mechanisms at a nanoindentation in the lamellar colony of high Nb containing TiAl alloy have been studied using the focused ion beam and the transmission electron microscopy. Considerable deformation twins are observed around the nanoindentation, and a strain gradient is generated. A continuous change in the bending angle of the lamellar structure can be derived, and a strain-induced grain refinement process is observed as various active deformations split the γ grains into subgrains. In addition to all possible deformation mechanisms (ordinary dislocation, super-dislocation and deformation twining) activated due to the heavy plastic deformation, a 6-layer hexagonal (6H) long-period stacking ordered structure is identified for the first time near the contact zone and is thought to be closely related to the glide of partial dislocations.     

烧伤患者家属需求与医务人员认知差异的调查研究

以重危患者家属需求量表调查烧伤住院患者家属需求和医务人员对家属需求的认知,寻找差异并提出对策,以期使医务人员更好地理解家属需求。结果显示,烧伤住院患者家属需求与医务人员对家属需求的认知存在28项差异(P<0.05);影响家属各维度需求差异的因素是家属年龄及患者是否曾入住其他病房(P<0.05);影响不同医务人员对各维度需求认知差异的因素是从事专业年限及职业类别(P<0.05)。因此,目前医务人员对烧伤住院患者家属需求有相当一部分无法给予认知和满足。建议建立基于家属教育和视频探视系统的探视制度,设置母婴同室病房;并引入医务社工,开展家属教育小组和巴林特小组。     

The relationship between person–team fit with supervisor–subordinate guanxi and organizational justice in a Chinese state‐owned enterprise

The study examines how subordinates’ perceptions of justice in Chinese working teams are influenced by the person–team fit (or the misfit) of the supervisor–subordinate guanxi (SSG). We tested our hypotheses on a sample of 1,086 employees from 149 work groups in one state‐owned enterprise; using a combination of cross‐level polynomial regression and response surface analysis. The results showed that subordinates’ perceptions of justice, in terms of procedural, interactional, and distributive justice, were higher when individual SSG was congruent with the average SSG in the team (TSSG) at a high level than when an individual SSG was congruent with TSSG at a low level. Meanwhile, in the misfit situation, subordinates’ perceptions of the three dimensions of justice were higher when the individual SSG relative to TSSG (relative SSG, or RSSG) was surplus (individual SSG exceeded TSSG) versus RSSG deficient (TSSG exceeded individual SSG). Nevertheless, the subordinates’ perceptions of distributive justice were the highest when SSG and TSSG were almost equal in high level, as observed by integrating the fit with the misfit line. These findings highlight the important boundary cultural conditions of the psychological processes of justice and provide useful insights for international managers conducting their business in China.     

超越效价和唤醒—— 情绪的动机维度模型述评

情绪的动机维度模型认为, 高动机强度的情绪窄化(narrow)认知加工而低动机强度的情绪扩展(broaden)认知加工。该理论超越了先前对效价和唤醒两大情绪维度的二分法, 证明了情绪的动机维度对注意、记忆等认知加工产生扩展和窄化效应, 深化了积极情绪的扩展-建设理论, 有助于深入理解情绪与认知的交互作用。未来研究应建立动机维度的操作性定义, 并进一步发展出诱发不同动机维度情绪的标准化刺激材料或任务。     

刻板印象内容模型：理论假设及研究

介绍了刻板印象内容模型(SCM)的来源、理论假设和在美国与欧洲(个人主义文化)、东亚(集体主义文化)样本中的实证研究。SCM假设:(1)用热情和能力区分不同群体的刻板印象;(2)对外群体的刻板印象是混合的;(3)高社会地位群体被刻板为具有高能力,竞争性群体被刻板为缺乏热情;(4)刻板印象中存在参照群体偏好和外群体贬抑。在比较和评价SCM与其他理论的基础上,提出了刻板印象内容研究进一步细化和扩展的方向     

认知闭合需要、框架效应与决策偏好

在带有模糊性的决策情境中,决策者个人的认知特征会对其判断决策产生重要影响。通过实验的方法,考察了认知闭合需要和特征框架效应对个体决策偏好的影响。93名工商管理硕士（MBA）参与了实验,研究的结果支持了本研究的3个假设,即认知闭合需要与特征框架效应不仅对被试的决策偏好存在显著的影响,而且二者还存在显著的交互作用。具体来说,研究发现,在模糊情境中：高认知闭合需要的被试偏好于立刻做出决策,而低认知闭合需要的被试偏好于暂缓做出决策;接收到正向框架信息的被试偏好于立刻做出决策,而接收到负向框架信息的被试偏好于暂缓做出决策;认知闭合需要与特征框架对被试的决策偏好还存在显著的交互作用。研究结论为根据个体认知闭合需要的水平来选拔决策者、利用框架效应来影响个体的信息加工方式进而提高决策质量提供了理论依据