表现性评价中评分者信度估计方法的比较研究--从相关法、百分比法到概化理论

随着素质教育的推进．表现性评价受到越来越多的重视。影响表现性评价结果信度的一个重要因素是评分者之间的不一致。文章使用模拟数据,在对比评分者一致性的相关法、一致性百分比法和概化系数等各种估计方法的基础上,提出概化理论在表现性评价中评分者信度问题上的应用是理论和实践发展的有益方向。     

关于自身记忆信念的年龄差异

记忆老化信念是元记忆研究的一个重要研究领域。本研究测量了94名老年人,38名年轻人记忆老化信念中关于自身记忆信念。结果发现,各年龄组间在对特定情境记忆能力信念上有差异,60～64岁、65～69岁年龄组被试对特定情境记忆能力评价最高,而70岁以上老年人与年轻组被试对特定情境上记忆能力评分无差异;年轻人对记忆的控制感要低于各组老年人;研究并没有发现被试在一般记忆能力信念上的年龄差异。     

工作记忆成分与儿童算术认知

根据Baddeley和Hitch(1974)提出的工作记忆多成分模型,研究者对工作记忆的各个成分与儿童算术认知之间的关系进行了广泛的探索。同语音环和视空间模板相比,中央执行在儿童算术认知加工中的作用显得更为关键。目前,探讨各种中央执行功能与儿童算术认知的关系,以及由此来解释算术学习困难儿童的认知成因是这个领域研究者最为关注的焦点。     

智障学生与正常学生内隐记忆与外显记忆的对比研究

本实验以探索智障学生与正常学生内隐记忆与外显记忆的发展特点为目的。采用2(材料类型:图片、汉语双字词)×2(贡献来源:外显记忆、内隐记忆)×2(被试类型:智障学生、正常学生)×2(年龄:低年级、高年级)的四因素混合设计,通过加工分离程序(PDP,process dissociation procedure)的包含和排除测验,计算意识和无意识的贡献大小。结果表明,⑴材料类型主效应极其显著;⑵贡献来源的主效应极其显著;⑶年龄效应不显著;⑷被试效应不显著;本研究结论可对智障学生的教育提供理论指导。     

前瞻记忆意向后效应的年龄差异

前瞻记忆意向后效应会对日常生活产生负面影响,研究发现这种现象在老年人中尤其突出。近些年来,研究者们从内外两方面对影响前瞻记忆意向后效应年龄差异的因素进行了探讨,了解到认知老化所带来的抑制能力的衰退以及短时记忆缺陷是造成其年龄差异的主要原因。未来研究需进一步拓展对认知老化的机制和抑制控制能力的认识。另外,可以采用事件相关电位（Event-Related Potentials, ERPs）和功能性磁共振成像（Functional Magnetic Resonance Imaging, fMRI）等脑成像技术揭示前瞻记忆意向后效应年龄差异的加工机制及神经机制。     

Reasons for Conflict: Political Implications of a Definition of Terrorism

This essay analyzes the U.S. political situation before the 2003 invasion of Iraq and ties this conflict to the events of 9/11. The guiding thread of the discussion is the definition of “terrorism” that has led to George W. Bush's declared “war on terrorism.” By means of Hegel's dialectic logic, the essay exposes the problem offered by the category of causality involved in the definition of terrorism: Is terrorism the original “cause” of the war declared on it by the United States (as the Bush administration claims) or is terrorism rather the very “consequence” of that war?     

Processing speed, intelligence, creativity, and school performance: Testing of causal hypotheses using structural equation models

According to mental speed theory of intelligence, the speed of information processing constitutes an important basis for cognitive abilities. However, the question, how mental speed relates to real world criteria, like school, academic, or job performance, is still unanswered. The aim of the study is to test an indirect speed-factor model in comparison to rivaling models explaining the relationships between different mental abilities and performance. In this speed-factor model, basic cognitive processing is assumed to influence higher mental abilities (IQ and creativity). Intelligence and creativity themselves should be valid predictors of school performance. We computed bivariate correlations and structural equation models to test this hypothesis, using indicators of processing speed [Zahlen-Verbindungs-Test (ZVT) and Coding Test], psychometric intelligence [Kognitiver Fähigkeits-Test (KFT) and Raven's Advanced Progressive Matrices (APM)], creativity [Verbaler Kreativitäts-Test (VKT) and Verwendungs-Test (VWT)] and school performance (grades). In a sample of 271 students from German gymnasiums (Class Levels 9 to 11) the speed-factor model can reproduce at best the empirical relationships between processing speed, intelligence, creativity, and school performance: It assumes that processing speed influences higher mental abilities (intelligence and creativity), which, in the sequel, influence school performance. Therefore, processing speed seems to have no direct effect on school performance; the effect is indirect as it operates via mediation through higher cognitive abilities.     

Affect, Curiosity, and Socialization-Related Learning: A Path Analysis of Antecedents to Job Performance

This study examined the influence of affect, curiosity, and socialization-related learning on job performance, with 233 service industry employees from a diverse variety of occupations completing surveys at their places of work. Both state and trait curiosity and socialization-related learning (learning associated with employee socialization) were hypothesized to mediate the relationship between affect (operationalized as state and trait anxiety and anger) and job performance. Structural equation analyses indicate that the data are consistent with the theoretical models proposed. As expected, anxiety negatively influences curiosity, socialization-related learning, and job performance; conversely, anger positively influences curiosity, socialization-related learning, and job performance. Overall, the findings suggest that affects indeed predict perception of job performance, but through the mediation of curiosity and the learning associated with the socialization process. These results highlight the importance of the complex interplay between affect, curiosity, and learning when thinking about successful employee socialization and best possible job performance.     

对感觉记忆在相同范畴视觉搜索中作用的研究

该文以三种字母卡片为刺激物,通过两种靶字母搜索实验,探讨了感觉记忆在相同范畴视觉搜索中的作用。实验结果显示,感觉记忆和短时记忆信息都可能利用时的搜索成绩,明显高于限用短时记忆信息时的搜索成绩。这表明,感觉记忆信息可以直接用于相同范畴的视觉搜索。     

小学生的工作记忆资源分配策略

以连环数运算的问题解决为实验材料,以小学三到六年级175名学生为被试,对小学生工作记忆资源的分配策略进行了考察。结果发现:小学生工作记忆资源的分配策略有多种,策略具有多样性;外部策略的正确性高于内部策略和内外部结合策略;使用不同策略解决问题的反应时差异显著;高年级学生比低年级学生更倾向于选择效率较高的策略。