基于时间分割的手写输入系统的用户绩效模型

为定量估计与提高基于时间分割的手写输入系统用户绩效 ,推导了用户绩效的静态与动态模型。实验一检验与修正了这两个模型 ,并获得整合模型。实验二证明该整合模型能对不同训练水平用户的绩效有较高的解释率。应用该整合模型发现 :当识别正确率RA、输入字数N为定值时 ,修改时间T、单字手写时间WT、分割时间ST、识别时间R这四个因素对任务完成时间D的影响大小次序为WT =ST =R >T ;当这四个因素为定值时 ,RA每提高 1% ,D至少节省 10 0 0ms。     

领导-成员交换理论的研究及发展趋势

领导 -成员交换理论 (leader memberexchange,LMX)是近年来一个重要的领导理论。本文对LMX的理论发展过程作了较为全面的回顾 ,总结了LMX在组织层面中的研究现状 ,包括LMX与组织绩效、组织公平、组织支持和员工满意感之间的相互关系 ,并进一步探讨了LMX在组织研究中的发展新趋势。     

反馈干预对绩效的影响研究

反馈干预是由外部动因提供的关于个体任务操作或过去行为的信息活动,它有反馈对象、反馈效价和反馈提供方式三个维度。研究结果表明反馈效价、反馈提供方式对绩效的影响具有主效应,且两者的之间交互作用对绩效也存在主效应。积极反馈效价、信息型提供方式有助于提高个体的绩效水平。     

回忆准备就绪程度的判断准确性与记忆成绩的相关

本研究采用3×3×2三因素混合实验设计(年龄、材料、性别),以|P-A|÷A做指标,对回忆准备就绪程度的判断准确性与记忆成绩之间的相关进行了研究。发现回忆准备就绪程度的判断准确性与记忆成绩的相关为-0.6199,达到了0.01显著性水平。同时,年级越低,监测准确性与记忆成绩之间的相关越高。回忆准备就绪程度判断的准确性在三项材料上存在差异,说明不同难度的材料对记忆监测与记忆成绩之间的相关有影响。回忆准备就绪程度判断的准确性与记忆成绩的相关存在性别差异,男生的相关值比女生要高。     

Students Who Like and Dislike School

The major goal of this study was to investigate relationships among levels of 341 secondary school students’ school satisfaction and various intrapersonal, interpersonal, and academic measures. The measures included the School subscale from the Multidimensional Students’ Life Satisfaction Scale (Huebner, 1994), Students’ Life Satisfaction Scale (Huebner, 1991), Children’s Hope Scale (Snyder et al. 1997), Behavioral Assessment System for Children (Reynolds & Kamphaus, 1992), self-perceived grade point average (GPA) and participation in extracurricular activities (SEAs). Students were placed into three groups based on their school satisfaction reports, including very low (lowest 20%), average (middle 30%), and very high (highest 20%) levels of school satisfaction. Students with very low school satisfaction differed from students with very high school satisfaction on all adjustment measures; students with very low school satisfaction also differed from students with average levels of school satisfaction on all measures, except the self-esteem measure. Relative to students reporting average levels of school satisfaction, students reporting very high satisfaction demonstrated significantly higher scores on measures of global life satisfaction, hope, internal locus of control, and GPA. Finally, only three students in the very high satisfaction group and nine students in the average satisfaction group reported clinical levels of psychological symptoms. In the very low satisfaction group, clinical levels of symptoms were reported by 30%, 22%, and 16% of the students on the Clinical Maladjustment, Personal Adjustment, and Emotional Symptoms Index, respectively. Implications for future research and educational practices are discussed.     

Academic procrastination: The pattern and correlates of behavioural postponement

Using a series of computer-based assignments, we examined whether students’ submission patterns revealed a hyperbolic pattern of temporal discounting, such that few assignments are submitted far ahead of the deadline and submission of assignments accelerates at an increasing rate as the deadline becomes imminent. We further examined whether variables related to self-regulation – namely, self-reported procrastination, implementation intentions, say-do correspondence, and perceived academic control – correlated with behavioural postponement. Results revealed strong behavioural evidence of temporal discounting, especially among those who identified themselves as procrastinators. Among the self-regulation measures, only say-do correspondence consistently correlated with procrastination.     

高技术工作团队的交互记忆系统及其效果

交互记忆系统近来被认为是影响工作团队绩效的重要特性之一。以往的研究局限于实验室样本或者由学生组成的临时团队,该研究从高技术企业中选取190个工作团队作为样本,考查了团队的交互记忆系统与团队中的其它现象之间的关系。研究除了发现Lewis的量表中有两个题目不理想外,还发现交互记忆系统与团队成员之间的信任、合作性目标导向具有显著的正相关,同时交互记忆系统与团队的工作绩效和凝聚力也具有显著的关系。该文在检验团队层次的现象时,通过计算团队成员在相应变量上得分的一致性(rwg)来检查加总分析的合理性,这是从事团队层次的研究中需要遵循的方法     

主观评分中多面Rasch模型的应用

主观评分中存在的不一致性导致主观评分的信度降低。多面Rasch模型基于项目反应理论,可以应用于评分员效应的识别和消除,从而提高主观评分的信度。该文介绍多面Rasch模型的理论和应用框架,介绍了国外相关的典型应用,并且讨论了该模型的应用条件。     

Blatant Stereotype Threat and Women's Math Performance: Self-Handicapping as a Strategic Means to Cope with Obtrusive Negative Performance Expectations

Research on the effect of stereotype threat has consistently shown that a reduction of stereotype threat due to decreased salience of negative stereotypic expectations in testing situations results in a performance boost. This article reports on an experiment (n = 75 high school students) designed to test the impact of increased salience of negative stereotypic expectations on math performance. As expected, female participants in the condition of heightened salience of negative stereotypic expectations underperformed in comparison to their control group counterparts. Moreover, it was found that the effect of blatant stereotype threat resulted in increased self-handicapping tendencies in women, which in turn led to significantly impaired math performance.     

Examining the Incremental Validity and Adverse Impact of Cognitive Ability and Conscientiousness on Job Performance

Using archival data from a large home improvement organization, the current study examined the incremental validity of conscientiousness over cognitive ability in predicting different performance criteria. Also, the study examined the effects of conscientiousness and cognitive ability on adverse impact. Results indicated that conscientiousness provided incremental validity over cognitive ability in the prediction of several performance criteria. Specifically, conscientiousness had the highest increases in validity over cognitive ability in the prediction of contextual performance factors (e.g., contextual performance, customer service orientation, dealing with others). However, the addition of conscientiousness failed to ameliorate the adverse impact associated with cognitive ability. In addition, limitations of the study and future directions of research are addressed.