物质奖励对内在动机的侵蚀效应

物质奖励制度在现实生活中无处不在, 但物质奖励能够激发人们的工作热情吗？依据认知评价理论, 奖励具有信息和控制两种因素, 前者有助于内在动机的维持, 后者则会损害内在动机, 即有侵蚀效应。这种侵蚀效应已经为众多研究所证明。对此效应的深入研究发现, 在不同情形下, 侵蚀效应的大小受到奖励条件设置、竞争情形、个体的归因倾向、反馈信息、自主选择空间等因素的影响。近年来神经学研究则进一步观察到侵蚀效应的神经表征与机制。     

13~15岁儿童对愤怒表情觉察的特点

本研究以13~15岁的青少年为被试,使用视觉搜索任务,要求被试对呈现在愤怒、愉快和中性图示面孔表情图片中的表情相同和表情不同的图片进行判断,从而检验青少年对愤怒表情、愉快表情和中性表情觉察效果的差异.结果表明:(1)当呈现相同的表情时,青少年对愤怒表情的图片的觉察比对愉快表情的图片的觉察要慢.(2)当呈现的表情中有不同的表情时,青少年对愤怒表情的觉察要快于对愉快表情的觉察.(3)青少年对愤怒表情的搜索斜率低于对愉快表情的搜索斜率.对愤怒表情的搜索和对愉快表情的搜索都为系列搜索.     

经济活动中的道德理性

经济活动不仅是人们的物质生产活动,也是人们“理性化”的认知活动和实践活动。它既体现了人类主体对技术、工具手段的认知理性,又体现了人类主体“合理性”、“合目的性”的价值理性。而道德价值理性是一切合理有序的经济活动的价值标矢和理性基础。     

孝的多维心理结构：取向之异与古今之变

孝的内在结构具有多面性, 但以往孝的量表存在信效度不高、掺入研究者主观意图、遗漏重要因素等弊端。研究通过经典文本改编和被试自由生成而编制条目, 通过因素分析与效标分析等方法考察孝的结构( 总样本量 = 1725), 发现孝包含尊敬安乐父母、服从父母、和颜对待父母、守身不辱父母、陪伴父母、扬名以显父母、思慕父母、不干涉父母、劝谏父母, 九因素结构具有良好的信效度。不同因素与效标变量(家庭自我概念、家庭弹性、父母教养方式、亲子边界不当、自立人格、服从倾向)具有不同的关联模式。这些发现反映出儒学论孝的敬慕之别、敬顺之变。此外讨论了不同因素的古今变迁。     

Covariances between regression coefficient estimates in a single mediator model

This study presents formulae for the covariances between parameter estimates in a single mediator model. These covariances are necessary to build confidence intervals (CI) for effect size measures in mediation studies. We first analytically derived the covariances between the parameter estimates in a single mediator model. Using the derived covariances, we computed the multivariate‐delta standard errors, and built the 95% CIs for the effect size measures. A simulation study evaluated the accuracy of the standard errors as well as the Type I error, power, and coverage of the CIs using various parameter values and sample sizes. Finally, we presented a numerical example and a SAS MACRO that calculates the CIs for the effect size measures.     

决策中损益值大小效应的发生条件及机制再探——一种齐当别视角及兼对视角本身的一些探

通过两个研究,损益值大小效应在1元～1亿元的广阔范围内,以及在只采用选择反应模式的条件下得到了进一步探讨,其机制也在齐当别模型的全新视角下得到了讨论;此外,齐当别模型本身以及模型的经典判断任务也得到了探讨.结果发现:基于选择反应模式时,损益值大小效应在获得情景中稳定存在,并只存在一个风险倾向的拐点,而它在损失情景中则不存在;损益值大小效应的机制能够被齐当别模型很好地解释;齐当别模型的经典判断任务对模型预测效能的检验力不足,但其与新设计的维度内判断任务联合后却有很大改善;齐当别模型对损失情景中的均含0结果值的决策任务的解释力还有待进一步探讨.     

A graphical representation of the mediated effect

Mediation analysis is widely used in the social sciences. Despite the popularity of mediation models, few researchers have used graphical methods, other than structural path diagrams, to represent their models. Plots of the mediated effect can help a researcher better understand the results of the analysis and convey these results to others. This article presents a method for creating and interpreting plots of the mediated effect for a variety of mediation models, including models with (1) a dichotomous independent variable, (2) a continuous independent variable, and (3) an interaction between an independent variable and the mediating variable. An empirical example is then presented to illustrate these plots. Sample code for creating plots of the mediated effect in R and SAS is also included, and may be downloaded from www.psychonomic.org/archive.     

幽门螺杆菌根除失败原因及补救策略分析

幽门螺杆菌（Hp）与胃炎、消化性溃疡、胃黏膜相关淋巴组织淋巴瘤及胃癌关系密切。随着根除Hp治疗在临床的普遍开展,Hp根除率逐渐下降,其主要原因是日益突出的抗生素耐药及患者对药物依从性差。对根除治疗失败者进行补救治疗已成为Hp治疗研究领域的新热点。由于各地的Hp耐药率及感染者个体情况存在很大差异,目前尚未形成统一规范的补救策略,遵循个体化的补救策略已逐渐被大家所接受。     

A Comparison Between Mexican American Youth Who Are in Gangs and Those Who Are Not

This exploratory study compares the differences between 43 Mexican American gang members and 43 Mexican American adolescents who are not members of a gang on several demographic, educational, familial, cultural, and psychological variables. Differences were analyzed using t tests and chi‐square analyses. Discussion focuses on implications for counseling. Este estudio de exploración compara las diferencias entre 43 Mexicoamericanos pertenecientes a alguna pandilla y 43 adolescentes Mexicoamericanos que no son miembros de una pandilla según distintas variables demográficas, educativas, familiares, culturales y psicológicas. Las diferencias se analizaron usando pruebas t y análisis de ji‐cuadrado. La discusión se centra en las implicaciones para la consejería.