Penalized Best Linear Prediction of True Test Scores

Psychometrika - In best linear prediction (BLP), a true test score is predicted by observed item scores and by ancillary test data. If the use of BLP rather than a more direct estimate of a true...     

Self-evaluation as a moderating factor of strategy change in directed forgetting benefits

In list method directed forgetting, instructing people to forget a studied word list usually results in better recall for a newly studied list. Sahakyan and Delaney (2003) have suggested that these benefits are due to a change in encoding strategy that occurs between the study of the first list and the study of the second list. To investigate what might mediate such strategy change decisions, in two experiments we induced bothforget and remember participants to evaluate their memory performance on the two lists. In Experiment 1, they were asked to explicitly recall the items from the first list before studying the second list. In Experiment 2, after the study of the first list, the participants provided a rapid aggregate judgment of learning. Evaluation eliminated the differences between the forget and remember groups for the second list in both experiments, because the remember group achieved recall levels comparable to those for the forget group. The role of performance evaluation in mediating directed forgetting benefits is discussed.     

The reciprocal relations among prosocial behavior,satisfaction of relatedness needs at school,and subjective well-being in school: A three-wave cross-lagged study among Chinese elementary school students

We examined the reciprocal relations among prosocial behavior, satisfaction of relatedness needs at school, and subjective well-being in school among Chinese elementary school students using a 3-wave longitudinal study with a 6-month interval. A total of 1018 elementary school students (M_age = 9.44 years; 53.90% male) completed a multi-measure questionnaire that tapped the targeted variables at three time points. After controlling for gender, age, and parental educational level, the results revealed that (a) Prosocial behavior, satisfaction of relatedness needs at school, and subjective well-being in school reciprocally facilitated each other directly; (b) prosocial behavior indirectly enhanced subjective well-being in school via satisfaction of relatedness needs at school, and subjective well-being in school indirectly enhanced prosocial behavior via satisfaction of relatedness needs at school. Limitations and practical applications were discussed.

     

重复性急性应激对攻击行为的影响及调控机制

关于急性应激对攻击行为的影响, 现有研究多集中于单次急性应激情境下。然而, 相比单次急性应激, 对重复暴露于同一应激源的研究更能反映人们在现实生活中经历的应激事件。与单次应激不同, 重复性急性应激与应激适应有关, 能够节省资源, 具有很强的进化和适应意义, 但目前关于重复性急性应激对攻击行为的影响却知之甚少。鉴于此, 研究运用事件电位相关技术、鼻喷催产素和催产素受体基因型分析方法, 探讨重复性急性应激对攻击行为的影响及内部机制, 并进一步探讨通过内部和外部调控重复性急性应激反应后攻击行为的变化。     

自我面孔识别的神经机制：基于fMRI研究的ALE元分析

自我面孔识别反映了个体通过自我与他人的区分识别出自我面孔的过程。本文采用ALE元分析的方法, 对自我面孔识别的fMRI研究进行系统的定量分析, 探究自我面孔识别的神经基础。结果显示, 自我面孔识别的关键脑区包括顶上小叶、额中回、额下回、脑岛、梭状回、楔前叶和枕叶皮层。另外, 自我面孔识别可能包括两个层面的加工过程：知觉层面的加工整合过程以及由知觉引发的评价和情绪反应过程。知觉加工整合涵盖了自我面孔识别的各个加工阶段, 主要涉及枕叶、梭状回和楔前叶的功能; 而评价加工及情绪反应过程则发生在自我面孔识别的中晚期, 主要涉及顶上小叶、额中回、额下回及脑岛的功能。未来研究可结合时间和空间数据并关注脑区间的协同功能, 考察与内感受的神经关联, 开展临床研究并探索威胁信息的影响机制。     

新生儿情绪性语音加工的正性偏向——来自事件相关电位的证据

准确解码语音中的情绪信息能让个体更好地适应社会环境, 此能力对新生儿和婴儿尤其重要, 因为人类刚出生时听觉系统远比视觉系统发育得完善。虽然已有研究表明5~7月龄的婴儿能分辨不同情绪种类的语音, 但目前对新生儿的研究还非常少。人类是否在出生时即具有分辨不同种类情绪性语音的能力?新生儿对情绪的加工是否存在正性或负性偏向?本文选用odd-ball范式考察高兴、恐惧、愤怒三种韵律性语音在1~6天龄新生儿大脑中诱发的事件相关电位。实验1直接对比三种情绪性条件, 发现新生儿大脑的额区(F3和F4电极点)可以区分情绪性语音的正负性, 正性(高兴)语音诱发的“失匹配反应”幅度明显大于负性(愤怒和恐惧)语音。实验2采用偏差和标准刺激反转的odd-ball范式, 证实了实验1的结果并非源于三种情绪语音物理属性的差异。本文的结果提示, 新生儿大脑可自动辨别正性与负性情绪语音, 但尚不能将愤怒和恐惧两种负性语音区分开来。更重要的是, 高兴语音比两种负性语音诱发了更大的失匹配反应, 这一结果首次从神经学层面(电生理指标)为新生儿情绪性语音加工的正性偏向提供了证据。     

中学生心理素质的类别特征:基于个体中心的潜在类别分析

了解中学生心理素质的类别特征并考察其性别与学段特点。使用中学生心理素质问卷对全国1570名中学生被试施测,使用潜在类别分析方法对中学生的心理素质类别特征进行划分,使用无序多分变量的Logistic回归考察中学生心理素质的性别与学段特点。结果:依据潜在类别分析的统计指标,中学生心理素质可划分"高心理素质组"(15%)、"较高个性-适应性组"(21%)、"较低个性-适应性组"(33%)和"低心理素质组"(31%)。进一步的分析发现,与"低心理素质组"相比,其它三组有着显著的性别和学段效应,"高心理素质组"、"较高个性-适应性组"和"较低个性-适应性组"的女生所占比例更大;同时,在这三个组群中初中生所占的比例更高。表明,中学生的心理素质有明显分类特征,不同潜在类别中有显著的性别与学段特点。     

长期护理保险居家护理项目的伦理基础与制度保障

长期护理保险居家护理项目包括家庭照护类和上门护理类,以孝道文化和尊老敬老文化为伦理基础。各地试点政策均对居家护理项目进行了规定。但家庭照护类项目中参保人家属在确定非正式护理人员和维系家庭照护质量中承受着伦理压力,上门护理类项目中上门护理员在维系护理质量和上门护理市场中承受着伦理压力。制度解决相关伦理问题,应允许参保老年人自由选择现金或服务支付,推进家政行业建设,对家庭照护质量维系提供支持,并建立统一的居家上门护理质量标准和考核制度,建立针对养老服务机构上门护理的惩罚和退出制度。

     

当代中学生价值取向现状的调查研究

对来自北京、河北、山西、内蒙、山东、安徽、福建等7省市的958名初三至高三的中学生进行了价值取向的测量,并对中学生价值取向在性别、年级和生存状态等因素方面的特点进行了分析。结果表明：1．中学生的价值取向总体上是积极向上的,他们在重视正义公理和社会规范的同时,也重视对个人品德的要求和自我各项的发展;2．不同亚群体中学生的价值取向之间存在一定的差异。