Identifiability of Diagnostic Classification Models

Diagnostic classification models (DCMs) are important statistical tools in cognitive diagnosis. In this paper, we consider the issue of their identifiability. In particular, we focus on one basic and popular model, the DINA model. We propose sufficient and necessary conditions under which the model parameters are identifiable from the data. The consequences, in terms of the consistency of parameter estimates, of fulfilling or failing to fulfill these conditions are illustrated via simulation. The results can be easily extended to the DINO model through the duality of the DINA and DINO models. Moreover, the proposed theoretical framework could be applied to study the identifiability issue of other DCMs.     

Assessment and Implications of Social Withdrawal Subtypes in Young Chinese Children: The Chinese Version of the Child Social Preference Scale

The authors’ goals were to evaluate the psychometric properties of the Chinese version of the Child Social Preference Scale (CSPS; R. J. Coplan, K. Prakash, K. O'Neil, & M. Armer, 2004) and examine the links between both shyness and unsociability and indices of socioemotional functioning in young Chinese children. Participants included of two samples recruited from kindergarten classes in two public schools in Shanghai, China. Both samples included children 3–5 years old (Sample 1: n = 350, M_age = 4.72 years, SD = 0.58 years; Sample 2: n = 129, M_age = 4.40 years, SD = 0.58 years). In both samples, mothers rated children's social withdrawal using the newly created Chinese version of the CSPS, and in Sample 2, teachers also provided ratings of socioemotional functioning. Consistent with previous findings from other cultures, results from factor analyses suggested a 2-factor model for the CSPS (shyness and unsociability) among young children in China. In contrast to findings from North America, child shyness and unsociability were associated with socioemotional difficulties in kindergarten. Some gender differences were also noted. Results are discussed in terms of the assessment and implications of social withdrawal in early childhood in China.     

Historical Semantic Chaining and Efficient Communication: The Case of Container Names

Semantic categories in the world's languages often reflect a historical process of chaining: A name for one referent is extended to a conceptually related referent, and from there on to other referents, producing a chain of exemplars that all bear the same name. The beginning and end points of such a chain might in principle be rather dissimilar. There is also evidence supporting a contrasting picture: Languages tend to support efficient, informative communication, often through semantic categories in which all exemplars are similar. Here, we explore this tension through computational analyses of existing cross‐language naming and sorting data from the domain of household containers. We find (a) formal evidence for historical semantic chaining, and (b) evidence that systems of categories in this domain nonetheless support near‐optimally efficient communication. Our results demonstrate that semantic chaining is compatible with efficient communication, and they suggest that chaining may be constrained by the functional need for efficient communication.     

父母的教养方式及性别对孝道代际传递的影响

基于代际传递视角,亲子配对调查了439户家庭,考察了父母性别和教养方式对双元孝道代际传递的心理机制。结果:(1)权威性孝道和互惠性孝道都存在直接显著的代际传递效应;(2)父母权威性孝道正向预测父母心理控制,父母心理控制在亲子权威性孝道代际传递过程中起了中介作用;(3)父母互惠性孝道正向预测父母心理自主,父母心理自主主要在亲子互惠性孝道代际传递过程中起了中介作用;(4)父母性别在父母双元孝道、父母教养方式与子女双元孝道之间起了显著的调节作用。     

依恋视角下自传体记忆提取的差异

自传体记忆是关于个人生活的记忆, 依恋理论为自传体记忆的理解提供重要的理论框架。本文以个体依恋风格的差异为视角, 根据Conway和Pleydell-Pearce’s的自我记忆系统(Self-Memory System)总结出在自传体记忆提取的过程中, 依恋系统具有目标导向、防御排斥和情绪调节的作用。安全型相较于非安全型依恋的个体在自传体记忆提取的数量、具体性、准确性、通达性和情绪强度、情绪唤醒度上具有优势。未来研究可以从依恋系统的激活, 焦虑型、回避型依恋在记忆提取中具体成分的差异, 依恋与不随意自传体记忆提取的关系上来探讨。     

焦虑易感群体焦虑识别与消退中催产素的作用

如何准确识别并缓解焦虑易感群体的焦虑情绪具有重要的社会意义和应用价值。目前焦虑识别与消退的研究缺乏客观和直接的手段,而且在作用机制上也不清晰。本项目以催产素在高依恋焦虑个体焦虑识别与消退中的作用机制为主要研究内容,创造性地将焦虑识别与消退整合在催产素的研究框架内,从生理测量和药物干预的视角为焦虑识别和消退提供新的研究思路。研究成果对于理解焦虑反应中的神经荷尔蒙机制具有重要科学意义,也为高依恋焦虑群体的焦虑评估和干预提供了新的路径参考,对维护和提升个体的心理健康具有重要价值。     

“华人工作相关人格量表”的编制、意义与效度

该文介绍了“华人工作相关人格量表”及其意义、结构、效度的一系列研究。ＣＰＷ选取与人工作相关人格特点有关的题目,在传统人格维度的基础上,增加了服务了取向（ＣＳＯ）和管理才能（ＯＭＲ）这两个针对工作民表境的人格维度。信度分析表明了１５个量表都具可接受内部一致性信度,１５个ＣＰＷ量表分数与一个形容词检测表的相关分析结果支持了ＣＰＷ的内容效度,ＣＰＷ的相关矩阵和因素结构初步确证了ＣＰＷ的结构效度,进一步的     

Blocking cholesterol synthesis impairs acquisition of the classically conditioned eyeblink response.

Smith-Lemli-Opitz (SLO) syndrome is a congenital disorder characterized by severe mental retardation. Patients with SLO lack 7-dehydrocholesterol (7 dH) reductase, which catalyzes the last step of cholesterol synthesis. Administration of an agent that blocks 7 dH cholesterol reductase, BM 15.766 (BM), leads to a biochemical profile which resembles that of SLO patients, i.e., lower plasma, liver, and brain cholesterol levels accompanied by the appearance of the precursors 7 dH and 8 dH cholesterol. In this article we address the functional consequences of chronic BM treatment on new motor learning by assessing acquisition of the classically conditioned eyeblink response. Just-weaned rats were fed BM by gavage for four months, with half of these rats given exogenous cholesterol during the last two months of BM treatment. Acquisition of the eyeblink response was impaired in BM-treated rats. Impaired acquisition of the eyeblink response was not accompanied by alterations in responsiveness to either the conditioned or unconditioned stimulus. Exogenous cholesterol, a clinically relevant countertreatment, failed to correct for the learning impairment produced by BM treatment. Chronic treatment with a cholesterol synthesis-blocking agent impaired associative learning in just-weaned rats.     

矩阵完成问题的项目生成研究

依据Embretson提出的认知设计系统方法,设计并编制了矩阵完成问题的项目生成系统,实际生成了矩阵完成问题测验。探讨矩阵测验与瑞文测验的关系,以及认知模型对矩阵问题的难度和区分度的预测能力。结果表明所设计的认知模型对矩阵项目的性能参数有一定的预测能力,生成的矩阵测验与瑞文测验有基本相同的心理测量属性。可以使用该系统生成的矩阵项目来测量被试的抽象推理能力。     

东莨菪碱对吗啡诱导的大鼠行为敏感化的影响

药物重复处理导致的行为敏感化与成瘾过程密切相关。本实验检验东莨菪碱对吗啡诱导的大鼠行为敏感化发展和转化的影响。实验一动物分为3组,分别进行生理盐水（对照组）、吗啡（10mg/kg,吗啡组）、吗啡（10mg/kg）＋东莨菪碱（3mg/kg,吗啡-东莨菪碱组）前处理,36小时腹腔注射4次（第1~2天）。自然戒断7天（第3~9天）。第10天,所有动物均使用吗啡（4mg/kg）激发,记录动物的自发活动量;第24天,吗啡组和吗啡-东莨菪碱组动物重复第10天的操作。实验二动物分为3组,分别接受生理盐水（对照组）、吗啡（10mg/kg,吗啡组）、吗啡（10mg/kg,吗啡-东莨菪碱组）处理,36小时腹腔注射4次（第1~3天）;间隔12小时后,3组动物分别接受生理盐水、生理盐水和东莨菪碱（3mg/kg）处理,仍为36小时腹腔注射4次（第3 ~5天）。第6~9天不进行药物处理。第10天和第17天,分别使用吗啡（4mg/kg）激发,记录动物的活动量。记录时间均为两小时(10分钟为一个记录单元)。结果表明,东莨菪碱能够抑制吗啡诱导的行为敏感化的发展,一定程度上也能够延缓行为敏感化的转化但没有阻断这种转化