A general linear model for estimating effect size in the presence of publication bias

When the process of publication favors studies with smallp-values, and hence large effect estimates, combined estimates from many studies may be biased. This paper describes a model for estimation of effect size when there is selection based on one-tailedp-values. The model employs the method of maximum likelihood in the context of a mixed (fixed and random) effects general linear model for effect sizes. It offers a test for the presence of publication bias, and corrected estimates of the parameters of the linear model for effect magnitude. The model is illustrated using a well-known data set on the benefits of psychotherapy.Authors' note: The contributions of the authors are considered equal, and the order of authorship was chosen to be reverse-alphabetical.     

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.     

整体汉字字形识别过程探索

本研究用微观发生范式探索了整体汉字和人工字的字形识别过程 ,主要获得以下结果 :1真字和人工字的正确提取率随呈现时间增长而提高 ,字形刺激的特征提取是一个有序的发展过程 ,字形识别加工受字特性 (真字与人工字 )和笔划数因素影响。2在以“十”为骨架和以“囗”为包围结构的字刺激中经常首先提取“十”或“囗”,而且首特征“十”或“囗”的提取不受字形熟悉性影响 ;笔划数变量仅对含“十”特征的字刺激的首特征提取产生影响。3在以上两类汉字中 ,“十”或“囗”作为首特征提取促进了字形识别加工过程。     

汉字阅读材料的不同排列组合对字词认知速度及准确性的影响

本研究探讨了汉字阅读材料的不同组合对字词认知速度及准确性的影响。实验材料是一篇３２０个字的短文阅读材料,分成三种不同组合形式让被试从左往右发声念读．一种是顺意排列材料形式（即文章句子符合句法及词意）,一种是逆意排列材料形式（即将文章的字词逆反排列）;一种是随机排列材料形式（即将全文字词打乱随机排列）。实验结果表明：对顺意排列材料的念读效果最好,念读速度及准确性明显高于另外两种材料组合形式;中青年组被试的结果明显优于老年组及儿童组的结果．结果提示,对字词念读的认知加工过程明显受相邻字词关系的影响及字词句子化的影响．     

COMPARISON OF PROTOTYPE AND ROTE INSTRUCTION OF ENGLISH NAMES FOR CHINESE VISUAL CHARACTERS

This study compared prototype and rote instruction of English names for Chinese visual characters. In the prototype condition, participants were taught the meaning of the prototype that served as the distinctive feature of multicomponent characters. In the rote condition, participants traced the character and wrote its translation. Participants learned more rapidly and maintained more words in the prototype condition.     

Semilattice-based dualities

The paper discusses regularisation of dualities. A given duality between (concrete) categories, e.g. a variety of algebras and a category of representation spaces, is lifted to a duality between the respective categories of semilattice representations in the category of algebras and the category of spaces. In particular, this gives duality for the regularisation of an irregular variety that has a duality. If the type of the variety includes constants, then the regularisation depends critically on the location or absence of constants within the defining identities. The role of schizophrenic objects is discussed, and a number of applications are given. Among these applications are different forms of regularisation of Priestley, Stone and Pontryagin dualities.     

编码方式对汉字短时记忆提取的影响

短时记忆提取是认知心理学研究中的重要课题之一。自Sternberg(1 966)提出短时记忆提取作的是序列的从头到尾的完全搜索以来 ,许多研究者对短时记忆提取进行了广泛的研究 ,提出了序列的自动停止的搜索、平行加工、直接存取 ,以及序列搜索和直接存取双重模型等许多不同看法 ,引起了激烈争论。本研究的目的是试图探索编码方式对汉字短时记忆提取的影响。实验运用Sternberg的“探测法” ,以随机排列的汉字作识记组和探测项刺激。实验结果表明 :编码方式对汉字短时记忆提取有很大影响 ,当用声音编码方式提取短时记忆汉字时 ,被试倾向于从头到尾的完全的搜索 ;当用形状编码时 ,被试倾向于作自动停止的搜索。     

关于听觉条件下中文字词劣效果的研究

对听觉条件下中文字词劣效果的问题进行了实验考察,结果发现：在文章听点作业中,被试对高、低频目标字词语音的正误判断量存在着显著性差别,前者较后者成绩差,表现出字词劣效果的现象;在单字词的听点作业中,未发现被试对高、低频目标字词语音正误判断量方面的显著性差别;无论在文章还是单字词的听点作业中,被试对高、低频目标字词语音的正误判断量均比较低下,表明语音知觉的范畴性特征对字词语音的辩认准确性具有较大影响。     

小学低段汉字识别和听写的发展轨迹：语素意识的预测作用

汉字识别和听写是字词水平上两项重要的读写技能。对127名一年级儿童进行了两年4个时间点的追踪调查,通过测查儿童的一般认知能力、语音意识、正字法意识和语素意识(包括同音语素意识、复合语素意识),探讨影响儿童汉字识别和听写发展的因素。利用潜变量增长模型,结果发现:(1)汉字识别呈线性发展趋势,听写呈先快后慢的非线性发展趋势,二者均存在补偿效应;(2)语素意识显著预测了汉字识别的起始水平和发展速度,但语素意识对听写的起始水平和发展速度均不具有显著的预测作用。研究结果表明儿童入学初始的汉字识别和听写水平并不决定后期的发展速度;语素意识对儿童汉字识别和听写发展的作用不同。     

电子地图汉字大小辨认阈限和合理字间距

本研究由三个实验组成,探讨电子地图中汉字呈现的辨认闽限和合理字间距（信息载负量）问题。实验一采用恒定刺激法测定电子地图中汉字的辨认闽限,结果显示,汉字复杂度和背景的复杂度都影响地图汉字识别,且不存在交互作用;宋体汉字的平均辨认阈限为7．0771’。实验二运用调整法测得在电子地图中宋体汉字的舒适阈限（能识别每个笔画的汉字辨认阈限）为16．6951’。实验三以视觉搜索方法研究字间距（体现在电子地图中单位面积字数）与搜索效率的关系,结果显示,每个汉字平均耗费的搜索时间随着字数增加而减少,说明字数越多,搜索效率越高。