家庭环境对中学生阅读能力的影响:阅读投入、阅读兴趣的中介作用

采用学生阅读能力测试卷和学生阅读状况调查问卷,对随机选取的559名中学生进行调查,并运用结构方程模型探讨了家庭环境影响阅读能力的内在机制。结果发现,家庭环境影响阅读投入的路径系数为0.18,阅读投入影响阅读兴趣的路径系数为0.51,阅读兴趣影响阅读投入的路径系数为0.80,阅读投入影响阅读能力的路径系数为0.46,各路径系数均达到显著水平(p0.05)。结果表明,(1)家庭环境通过阅读投入的完全中介作用影响阅读兴趣;阅读兴趣通过阅读投入的完全中介作用影响阅读成绩;(2)家庭环境对阅读能力的影响是通过阅读投入和阅读兴趣的循环互动作用实现的。     

The Effect of Recipient Identifiability and Neediness on Children's Sharing Behavior

The identifiable victim effect refers to people's greater willingness to share resources with identified targets (about whom they have some identifying information) than to share with unidentified or statistical targets. Previous research examining adults' behavior suggests that identifiable targets arouse in the perceiver an intense emotional reaction that, in turn, increases sharing especially when the target is perceived as needy. In the current research, we examine whether the spontaneous reaction toward an identifiable, needy target and the increase in sharing with such a target appears in young children's sharing behavior and when in early childhood it develops. The results suggest that adding identifying information about a needy recipient increases sharing only in older children (above the age of 5.5) and in children who have acquired higher levels of theory of mind (independent of age). Mediation–moderation analysis suggests that theory of mind mediates the relation between age and sharing mainly when a specific, needy recipient is presented. Copyright © 2015 John Wiley & Sons, Ltd.     

Why misinformation is reported: evidence from a warning and a source-monitoring task

People report suggested misinformation about a previously witnessed event for manifold reasons, such as social pressure, lack of memory of the original aspect, or a firm belief to remember the misinformation from the witnessed event. In our experiments (N?=?429), which follow Loftus's paradigm, we tried to disentangle the reasons for reporting a central and a peripheral piece of misinformation in a recognition task by examining (a) the impact a warning about possible misinformation has on the error rate, and (b) whether once reported misinformation was actually attributed to the witnessed event in a later source-monitoring (SM) task. Overall, a misinformation effect was found for both items. The warning strongly reduced the misinformation effect, but only for the central item. In contrast, reports of the peripheral misinformation were correctly attributed to the misinformation source or, at least, ascribed to guesswork much more often than the central ones. As a consequence, after the SM task, the initially higher error rate for the peripheral item was even lower than that of the central item. Results convincingly show that the reasons for reporting misinformation, and correspondingly also the potential to avoid them in legal settings, depend on the centrality of the misinformation.     

The misinformation effect is unrelated to the DRM effect with and without a DRM warning

The misinformation and Deese–Roediger–McDermott (DRM) paradigms are used to study forms of false memories. Despite the abundance of research using these two paradigms, few studies have examined the relationship between the errors that arise from them. In the present study, 160 participants completed a misinformation task and two DRM tasks, receiving a warning about the effect before the second DRM task. Participants demonstrated misinformation and DRM effects (with and without the warning), but susceptibility to these forms of false memory were not significantly related across individuals. The DRM warning reduced the DRM effect, and signal detection analysis revealed that the DRM warning reduced a liberal response bias in this task. Sensitivity and response bias in both DRM tasks were not significantly related to these measures in the misinformation task. These findings suggest that these two forms of false memories are not interchangeable and they appear to be the result of different cognitive processes.     

Information presentation format moderates the unconscious-thought effect: The role of recollection

The unconscious-thought effect occurs when distraction improves complex decision-making. In two experiments using the unconscious-thought paradigm, we investigated the effect of presentation format of decision information (i) on memory for decision-relevant information and (ii) on the quality of decisions made after distraction, conscious deliberation or immediately. We used the process-dissociation procedure to measure recollection and familiarity. The two studies showed that presenting information blocked per criterion led participants to recollect more decision-relevant details compared to a presentation by option. Moreover, a Bayesian meta-analysis of the two studies provided strong evidence that conscious deliberation resulted in better decisions when the information was presented blocked per criterion and substantial evidence that distraction improved decision quality when the information was presented blocked per option. Finally, Study 2 revealed that the recollection of decision-relevant details mediated the effect of presentation format on decision quality in the deliberation condition. This suggests that recollection contributes to conscious deliberation efficacy.     

The effects of acute resistance exercise on young and older males' working memory

ObjectivesThe aim of the current study was two-fold: to examine the effects of acute, moderate intensity resistance exercise (RE) on working memory in young and older males, respectively.DesignA two-study approach with a within-subjects design.MethodsStudy 1 recruited 20 young males aged 21–30 years. Participants underwent two experimental sessions, the exercise session and reading session, in a counterbalanced order. The RE protocol included two sets of 10 repetitions at 70% of 10-repetition maximum of eight muscle exercises. The Sternberg working memory paradigm with two probe types (in-set probes and out-of-set probes) was used as the cognitive task where reaction times (RT) and response accuracy were identified. Study 2 recruited 20 older male adults aged 65–72 years. The methods and experimental procedures were the same as Study 1.ResultsIn Study 1, young males demonstrated shorter RTs after the exercise treatment as compared with the reading treatment for both probe types. In Study 2, older males showed shorter RTs after the exercise treatment as compared with the reading treatment in the out-of-set probes only.ConclusionsWhile acute RE benefited working memory in both young and older males, rather than general facilitation, it was shown to have a disproportionately larger effect on older males for tasks involving higher working memory demands.     

风险回避行为中的“红色图形效应”

以往研究发现,风险回避领域存在着一种经典的"图形效应"(即图形会比数字激发出个体更强的风险回避行为)。但以往研究通常只采用灰色或黑色来呈现风险信息。基于近来关于红色效应的探讨,本研究试图将颜色因素引入到图形效应中以探讨不同颜色下的图形效应特点。结果发现,相比于蓝色,红色能激发出个体更强的风险回避行为,且颜色对图形效应具有调节作用,即与蓝色相比,红色条件下出现了增强的图形效应,即"红色图形效应"。有关结果说明,红色作为一种危险警示颜色可以激发出个体更强的风险回避行为,且会诱发更大的图形效应。     

视觉单通道还是视听双通道?——通道效应的元分析

多媒体学习中的通道效应认为,学习者对"画面+声音解说"组成的视听双通道材料的识记或理解效果要好于"画面+视觉文本"组成的视觉单通道材料,而逆转通道效应则发现了与之相反的结果。针对以往研究缺陷,重新采用元分析技术,以保持测验和迁移测验作为结果变量,考察通道效应的稳定性。经文献检索、纳入与排除后,共获91篇符合元分析的文献。经数据事先合并处理后,保持测验上生成94个独立效应量(8088人),迁移测验上生成83个独立效应量(6664人)。主效应检验发现:视听双通道在保持测验(d=0.24)和迁移测验(d=0.25)上均显著高于视觉单通道;调节效应检验发现:呈现步调、画面动态性和材料时长在保持测验和迁移测验上均对通道效应起到调节作用,通道效应主要在系统步调(d_(保持)=0.43,d_(迁移)=0.44)、动态画面(d_(保持)=0.50,d_(迁移)=0.59)及短时材料(d_(保持)=0.38,d_(迁移)=0.33)条件下出现;所有结果均未发现逆转通道效应。结论认为:相比视觉单通道,当图文信息以视听双通道呈现时更有利于促进学习者对多媒体学习材料的识记和理解,支持了多媒体学习认知理论;呈现步调、画面动态性以及材料时长是通道效应的重要边界条件。     

联合Simon效应:现状、影响因素与理论解释

联合Simon效应是一种空间刺激–反应相容性效应,它出现在当两个参与者完成Simon任务的互补成分时。该效应被认为是反映自我–他人整合程度的一个有效指标。影响此现象的因素主要包括社会和非社会因素。社会促进理论、共同表征理论、空间反应编码理论和参照编码理论对该效应作出了解释。未来关于联合Simon效应的研究需深入探讨其影响因素以及脑机制,并进一步完善理论解释。     

越难读意味着学得越好?学习过程中的不流畅效应

教育心理学领域的不流畅效应认为,学习难读材料要比学习易读材料的效果更好。已有研究主要通过操纵学习材料中的文本、画面或声音属性考察知觉流畅性在学习过程中的作用,并发现不流畅材料可能有助于缓解过度自信现象,但不一定能提高学习效果,不流畅效应的稳健性受到质疑。合理难度理论与不流畅理论均认为,知觉不流畅所引发的额外认知负荷促进了学习;相反,认知负荷理论认为这种额外认知负荷会阻碍学习。对现有研究进行元分析,结果表明,知觉不流畅既降低了学习判断的自信心(d=-0.54),也不利于提高学习效果(d=-0.36),一定程度上支持认知负荷理论。未来研究需关注知觉流畅性本身的操纵、界限及系统性评定,并探讨不流畅效应的边界条件等。