高中生物理和化学学科中同伴学业支持与学业情绪的关系:学习效能感的中介作用和性别的调节作用

研究发现学习效能感会受到同伴支持的影响,同时它又是影响学生学业状况的重要前因变量。根据控制价值理论,本研究通过对3329名高一和高二学生的调查,考察在物理和化学学科中,学习效能感是否会在同伴学业支持和学业情绪中起到中介作用。发现：(1)同伴学业支持和学习效能感呈显著正相关;两者与高兴学业情绪显著正相关,与厌倦学业情绪显著负相关;(2)在控制了年龄、年级、性别和地域后,学习效能感在同伴学业支持和高兴学业情绪中起部分中介作用,在同伴学业支持和厌倦学业情绪中起完全中介作用;(3)在物理学科中,性别调节了学习效能感和学业情绪的关系。本研究验证并拓展了控制价值理论,对于如何提高中学生物理和化学学习的积极情绪有借鉴意义。     

Asserting your mind: Interruptions extremize consumer choices

Interruptions prevail in the retail environment, especially during consumer decision-making. However, scant research has examined whether and how interruptions that suspend decisions affect consumer choices. We posit that interruptions heighten the consumers' preference certainty, which leads to a choice extremity effect—consumers choose their preferred products even more and their unpreferred products even less. Six experiments provide convergent evidence for the choice extremity effect and the underlying process. Study 1a shows that interruptions lead to choice extremity with a vice product (i.e., chips). Study 1b confirms the effect in the context of incentive-compatible choices. Study 2 replicates the choice extremity effect with a virtue product (i.e., yogurts). Study 3 further tests the robustness of the effect with a decision-related interruption. Study 4 shows that preference certainty mediates the effect of interruptions on choice extremity and rules out the level of arousal and task involvement as alternative accounts. Using a moderation approach, Study 5 shows that the choice extremity effect disappears when consumers have high self-concept clarity. The present study contributes to research on interruptions, preference certainty, and consumer choices and provides implications for marketers.     

Insights into computational thinking from think-aloud interviews: A systematic review

This systematic review examines 35 empirical studies featuring the use of think-aloud interviews in computational thinking (CT) research. Findings show that think-aloud interviews (1) are typically conducted in Computer Science classrooms and with K-12 students; (2) are usually combined with other exploratory CT assessment tools; (3) have the potential to benefit learners with special needs and identify the competency gaps through involving diverse participants; (4) are conducted in the absence of cognitive models and standard procedures; and (5) display insufficient definitional and methodological rigor. Theoretically, this review presents a systematic assessment about the application of think-aloud interviews in CT studies and identifies the limitations in existing CT-related think-aloud studies. Practically, this review serves as a reference for studying the cognitive processes during CT problem-solving and provides suggestions for CT researchers who intend to incorporate think-aloud interviews in their studies.     

自由回忆和线索回忆测验中的系列位置效应

本文以96个中国汉字为材料,使用自由回忆和线索回忆测验方法,对20名被试进行6组分测验和最后所有汉字的总测验。发现自由回忆分测验中存在明显的系列位置效应,总测验出现负近因现象;线索回忆分测验也表现出明显的系列位置效应,但最后的总测验没有出现负近因现象。上述结果验证了Bjork和Whitten（1974）提出的顺序或情景理论。     

传统统计方法面临的挑战:元分析方法

利用计算机构造实验组和控制组总体,进行传统统计方法与元分析比较实验研究。在实验组总体高出控制组总体０．５０个标准差的提下,传统ｔ检验的统计检验能力（Ｐ）仅为为４１％;而利用元分析的方法进行统计分析,其结果与计算机构造模型有很高的一致性从而提出元分析方法在进入心理学实验研究和证实理论方面的有效性和可靠性,以及传统统计方法面临挑战的事实。     

Cultural orientation and psychological well-being in Chinese Americans

Examined cultural orientation in the domains of language proficiency, cultural activity, and social relationship, and its relationship with psychological well-being in a group of 143 Chinese Americans in San Francisco. Four indicators of psychological well-being were utilized, two assessing the experience of distress (depression level and negative affect) and two assessing positive well-being (positive affect and life satisfaction). Domain-specific cultural orientations were found to hold differential relationships with psychological well-being. For instance, bicultural activity orientation predicted the best psychological well-being (regardless as to how it was assessed), but socially separatist individuals experienced less negative affect than assimilated and bicultural respondents. Findings were discussed in the context of the multicultural setting of San Francisco. It is suggested that future research retain separate assessments of domain-specific cultural orientation, examine the contribution of the community's ethnic/cultural composition to its members' cultural orientations (i.e., address the role of person-environment fit) and study their impact on psychological well-being. The data reported here were collected as part of the author's doctoral dissertation. Ricardo F. Munoz and Guillermo Bernal guided and supported the implementation of this study; Sunwoo Lee assisted with the data analysis; and Edison J. Trickett and the anonymous reviewers offered helpful suggestions.     

关联性记忆错觉的产生与保持

两项实验对关联性记忆错觉的产生与保持进行了考察。实验结果表明,关联性记忆错觉接近学过词的回忆水平,但它的产生不随年龄的变化而变化;时间变量对关联性记忆错觉的影响不显著。此外,关联性记忆错觉不同于学过的词,在延迟加快时没有系列位置效应的产生。     

关键词方法与英语词汇的掌握

本实验用中国学生对国外的学习外语词汇的关键词方法进行了验证。结果表明现有的关键词方法不适于中国学生,但改进了的新关键词方法明显地有利于学生均英译中。     

在包含多种提取内容时加工层次对自由回忆和再认的影响

本实验的目的是探索加工层次(方式)对自由回忆和再认的影响,实验条件同时包含适合于原来加工方式的提取内容以及不适合于原来加工方式的提取内容。结果表明,深层的意义水平的加工方式产生了最好的保持。从提取内容与加工方式的一致性对结果进行了讨论,最后强调了加工方式对提取是极端重要的。     

长期高策略性技能训练对运动员大脑白质结构的影响：一项DTI研究

目前关于运动员经验优势的脑机制还存在争议, 尤其对于涉及较多认知过程参与的高策略性技能项目运动员, 其大脑白质结构可塑性变化还需进一步探究。研究横向对比了乒乓球运动员和非运动员大脑白质纤维束的弥散张量成像数据。结果发现, 相比于非运动员, 乒乓球运动员在连接背侧和腹侧通路脑区的双侧皮质脊髓束、左侧上纵束、左侧下纵束和双侧额枕下束的各向异性值(FA)更大, 进一步分析发现, 部分腹侧通路白质纤维束FA增加的原因是径向扩散系数(RD)下降。研究结果支持了动作双通路模型。提示经过长期高策略性技能训练, 乒乓球运动员在背侧和腹侧通路上的白质纤维束结构完整性增强。