一种多策略认知诊断方法:MSCD方法的开发

当前国内外开发的认知诊断模型基本上只能处理单策略的测验情景,并假设所有被试均采用同一种加工策略/解题策略,从而忽视了加工策略的多样性及差异性.本研究根据de la Torre和Douglas (2008)采用多个Q矩阵来表征多个加工策略的思想,并结合使用丁树良等(2009)修正的Q矩阵理论及孙佳楠,张淑梅、辛涛和包珏(2011)的广义距离判别法,开发了一种新的多策略认知诊断方法——MSCD方法.Monte Carlo模拟研究结果表明:在单策略测验情景下,传统的单策略认知诊断方法与采用MSCD方法的诊断正确率均比较理想,且差异不大;但在多策略测验情景时,传统的单策略认知诊断方法诊断正确率较低,而MSCD方法的诊断正确率却仍较理想;当加工策略增至5种时,MSCD方法仍有较高的边际判准率、模式判准率以及加工策略判准率.研究表明MSCD方法基本合理、可行.这为实现对加工策略的诊断提供了方法学支持,有利于拓展认知诊断在实际中的应用.     

Modesty in self‐presentation: A comparison between the USA and Japan

Japanese participants in Study 1 exhibited a self‐effacing tendency when no reason for their self‐evaluation was provided. However, they exhibited a self‐enhancing tendency when they were offered a monetary reward for the correct evaluation. In Study 2, Americans, especially American men, exhibited a self‐enhancing tendency whereas Japanese exhibited a self‐effacing tendency when no reason for making the evaluation was presented. This cultural difference disappeared when participants were provided with a monetary reward for correctly evaluating their performance level. These results support the view that the modesty observed in self‐evaluation among Japanese participants is a ‘default strategy’ to avoid offending others.     

中学生成就目标定向与学习策略、学业成绩的关系研究

本研究采取问卷法,选取武汉市283名初一和高二学生为被试,考察了中学生成就目标定向与学习策略、学业成绩的关系。结果表明:(1)掌握目标与深加工、元认知策略以及浅表策略三者都存在显著相关,其中与浅表加工策略相关的显著性水平略低,成绩接近目标与三种学习策略都在呈非常显著相关,而成绩回避目标只与浅表策略显著相关;(2)掌握目标和成绩接近目标有助于学业成绩,成绩回避目标不利于取得良好成绩;(3)与初一年级相比,高二年级中成绩接近目标和掌握目标显著下降,采取深加工和元认知策略的水平也下降;初一和高二年级中,男生比女生更多采取掌握目标和元认知策略;(4)多元目标比单一目标的学生更多地使用深加工和元认知策略,但多元目标者并不必然比单一目标者成绩好。     

4～6岁儿童三种时间副词理解能力及策略的实验研究

采用定量与定性相结合的研究方法,对4～6岁儿童理解时间副词的能力进行了初步的探查,结果表明:(1)学前儿童对不同时间副词的理解能力是不同的。对现在时间副词的理解优于对过去时间副词的理解,对将来时间副词的理解能力最低,基本处于萌芽阶段。但这种理解能力的年龄发展效应不明显。(2)在表示将来的时间副词中,儿童对不同的具体时间副词表现出认知差异。(3)学前儿童在理解时间副词时多种策略并存。随着年龄的增长,有效策略的生成能力有了明显的提高。     

中学生连环数运算中的工作记忆资源分配策略

以初一到高三274名中学生为被试,以连环数认知运算为实验材料,对中学生工作记忆资源的分配策略进行了考察,结果表明:中学生工作记忆资源的分配存在多种策略,且具有多样性;外部策略的正确性高于内部策略和内外部结合策略;中学生使用不同策略解决问题的反应时差异显著;以学生的策略选择的百分比和策略的正确率与解题速度为指标综合考察学生的策略选择来看,中学生较倾向于选择正确率较高的策略。     

自动化情绪调节策略对特质焦虑大学生应激反应的影响

研究采用句子整理任务诱发自动化情绪调节策略,特里尔社会应激测试模拟应激过程,以探讨认知重评和表达抑制对不同特质焦虑倾向大学生在应激状态下的影响。结果发现,自动化认知重评和表达抑制能获得适应性生理反应。自动化情绪调节策略适用于不同特质焦虑倾向的个体。特质焦虑对个体应激反应的影响主要体现在情绪体验上,高焦虑特质个体更易体验到焦虑情绪。但个体在压力性任务中的生理反应和行为表现不受特质焦虑因素的影响。     

作文前构思时间分配及其对写作成绩影响的研究

通过3个分实验考察了优差生的作文前构思时间分配及其不同的构思时间分配策略对作文成绩的影响。实验1发现“优生”和“差生”在无时限写作情况下,前者花在构思上的时间更多,并运用了较好的构思策略;实验2发现“优生”和“差生在限时写作情况下,在构思时间上没有显著的差异,但他们在构思策略上仍表现出差异;实验3发现长时限构思比短时限构思能够带来更好的文本质量。作者对写作前构思的计划和管理,可能是提高作文质量的自我调控策略之一。     

Human Navigational Strategy for Intercepting an Erratically Moving Target in Chase and Escape Interactions

Abstract

Pursuit and interception of moving targets are fundamental skills of many animal species. Although previous studies in human interception behaviors have proposed several navigational strategies for intercepting a moving target, it is still unknown which navigational strategy humans use in chase-and-escape interactions. In the present experimental study, by using two one-on-one tasks as seen in ball sports, we showed that human interception behaviors were statistically consistent with a time-optimal model. Our results provide the insight about the navigational strategy for intercepting a moving target in chase-and-escape interactions, which may be common across species.     

Metacognitive processes in the self-regulation of performance in elite endurance runners

ObjectiveThis study sought to investigate the dynamics of attentional focus and cognitive control during endurance activity from a metacognitive perspective. The study also intended to examine the situational factors which may influence cognitive strategy use by elite endurance runners.DesignSemi-structured qualitative interviews were utilised.MethodTen elite-level endurance runners were interviewed to explore retrospectively their attentional focus and cognitive strategy use during endurance running.ResultsThe findings revealed that metacognitive strategies such as planning, monitoring, reviewing and evaluating, and metacognitive experiences were fundamental to cognitive control and cognitive strategy use in elite endurance runners. The findings also added to the array of active self-regulatory strategies previously reported in the literature.ConclusionsThese results suggest that metacognitive processes are central to effective cognitive control in elite endurance athletes during running. The findings allowed for the development of an integrative metacognitive framework, which incorporates dimensions of attentional focus. This model may better represent the processes which underpin cognitive control and determine cognitive strategy use in elite athletes during endurance running.     

4—6岁幼儿在物质缺失条件下交往策略的实验研究

运用自然实验法探讨４—６岁幼儿在物质缺失的条件下交往策略的特点以及他们在年龄、类型、性别维度上的分布特征。结果表明：随年龄增长，幼儿交往策略的水平在不断提高，但以５岁幼儿提高最为明显；性别特征不影响幼儿发起、协调、交换等交往策略的水平；在交换的四种类型中，按人数多少的顺序，依次为Ａ型、Ｃ型、Ｄ型、Ｂ型。