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121.
122.
Tsz Cheung Lam 《Social Psychology of Education》2006,9(3):273-299
A case study of six teachers cooperating to improve a teacher’s teaching showed the dynamics of the group problem-solving
process. An analysis of their verbal interactions showed the importance of shared understanding to successful group problem
solving. The cooperative group structure helped members resolve cognitive conflicts and build group understanding. During
this process, the members’ past teaching experiences and knowledge contributed to their conceptualization of the teacher’s
teaching problems and their proposed solutions to improve the teacher’s teaching.
Tsz Cheung Lam graduated from the Department of Educational Psychology at the Chinese University of Hong Kong in 2004 and obtained his Master
of Education degree. His research interests lie primarily on cooperative learning and problem solving. As a primary school
teacher in practice, he is now studying part-time for another master degree in data science at the Department of Statistics
of the Chinese University of Hong Kong. 相似文献
123.
The General Health Questionnaire (GHQ) is a self-report questionnaire designed to identify psychological distress. Psychometric properties of two versions of GHQ-12 and GHQ-20 were assessed in a large population-based sample of Finnish twins, ages 22 to 27 (n= 4580). Participants were randomized into two subgroups, namely Twin1 (n= 2294) and Twin2 (n= 2286). The GHQ-12 data were assessed using Confirmatory Factor Analysis (CFA). The factor structure of the GHQ-20 was first assessed with Exploratory Factor Analysis (EFA) in the Twin1 dataset, and the results obtained were then subjected to CFA in Twin1 and Twin2 datasets. The CFA of the GHQ-12 indicated that the best fit and the simplest solution were provided by the three-factor solution in both subpopulations. Analyses of the GHQ-20 suggested that the four-factor structure was superior to the three-factor model. This result is also theoretically justifiable. Compared to the 12-item version, GHQ-20 provides additional fourth factor of anhedonia, suggesting some discriminative power. 相似文献
124.
Elizabeth Nair 《Journal of Adult Development》2000,7(2):121-126
Singapore is an urban, highly industrialized country in South East Asia. By 2030, one-fifth of the population is projected to be composed of citizens aged above 65 years. Research on aging has largely focused on the effects of deteriorating physical ability on daily functioning capabilities (Iwarsson & Isacsson, 1997; Warr, 1995). More recently, the role of self-perceived usefulness, competence and control on well-being in the elderly have been investigated (Heberlein, Licht & Licht, 1999; Ranzjin, Keeves, Luszcz, & Feather, 1998). In other fields, activity and involvement have been identified as effective coping devices (Nair, 1989; Shalit, 1988). The present study compared the conceptual understanding of the esteem and well-being of the elderly on the dimensions of activity, involvement, and control, as viewed by an undergraduate sample (n = 60) and a cross-section of seniors (n = 71). Three separate factor analyses reflected interesting variations in the conceptual frameworks. 相似文献
125.
An empirical test of a comprehensive model of intrapersonal empowerment in the workplace 总被引:9,自引:0,他引:9
Gretchen M. Spreitzer 《American journal of community psychology》1995,23(5):601-629
A comprehensive model of intrapersonal empowerment in the workplace posits that empowerment mediates the relationship between
the social structural context and behavioral outcomes. The social structural context is operationalized as perceptions of
role ambiguity, sociopolitical support, access to strategic information and resources, and work unit culture, whereas behavioral
outcomes are operationalized as innovativeness and effectiveness. The model is examined on a sample of 324 middle managers
from different units of a Fortune 50 organization. Survey data are examined using a series of regression analyses to assess
the mediating effect of intrapersonal. Results suggest that intrapersonal empowerment mediates the relationship between some
elements of workplace social structure and innovativeness, but not effectiveness. Although not a mediating mechanism for effectiveness,
intrapersonal empowerment is nonetheless directly related to effectiveness (as assessed by the respondent's subordinates).
Implications of the results are discussed as are study limitations and directions for future research.
This paper is based on the author's dissertation, presented in partial fulfillment of the requirement for the doctoral degree
at the University of Michigan. I am grateful to my dissertation committee which included Robert E. Quinn (chair), Susan Ashford,
Richard Bagozzi, Karl Weick, and Marc Zimmerman for their thoughtful guidance. Thanks is also extended to Neil Sendelbach
for his help in facilitating data collection. The University of Michigan and the University of Southern California both provided
financial support for this research. This paper was prepared while the author was a Zumberge Fellow at the University of Southern
California. 相似文献
126.
Factor analysis is regularly used for analyzing survey data. Missing data, data with outliers and consequently nonnormal data are very common for data obtained through questionnaires. Based on covariance matrix estimates for such nonstandard samples, a unified approach for factor analysis is developed. By generalizing the approach of maximum likelihood under constraints, statistical properties of the estimates for factor loadings and error variances are obtained. A rescaled Bartlett-corrected statistic is proposed for evaluating the number of factors. Equivariance and invariance of parameter estimates and their standard errors for canonical, varimax, and normalized varimax rotations are discussed. Numerical results illustrate the sensitivity of classical methods and advantages of the proposed procedures.This project was supported by a University of North Texas Faculty Research Grant, Grant #R49/CCR610528 for Disease Control and Prevention from the National Center for Injury Prevention and Control, and Grant DA01070 from the National Institute on Drug Abuse. The results do not necessarily represent the official view of the funding agencies. The authors are grateful to three reviewers for suggestions that improved the presentation of this paper. 相似文献
127.
As proposed for the emergence of modern languages, we argue that modern uses of languages (pragmatics) also evolved gradually in our species under the effects of human self-domestication, with three key aspects involved in a complex feedback loop: (a) a reduction in reactive aggression, (b) the sophistication of language structure (with emerging grammars initially facilitating the transition from physical aggression to verbal aggression); and (c) the potentiation of pragmatic principles governing conversation, including, but not limited to, turn-taking and inferential abilities. Our core hypothesis is that the reduction in reactive aggression, one of the key factors in self-domestication processes, enabled us to fully exploit our cognitive and interactional potential as applied to linguistic exchanges, and ultimately to evolve a specific form of communication governed by persuasive reciprocity—a trait of human conversation characterized by both competition and cooperation. In turn, both early crude forms of language, well suited for verbal aggression/insult, and later more sophisticated forms of language, well suited for persuasive reciprocity, significantly contributed to the resolution and reduction of (physical) aggression, thus having a return effect on the self-domestication processes. Supporting evidence for our proposal, as well as grounds for further testing, comes mainly from the consideration of cognitive disorders, which typically simultaneously present abnormal features of self-domestication (including aggressive behavior) and problems with pragmatics and social functioning. While various approaches to language evolution typically reduce it to a single factor, our approach considers language evolution as a multifactorial process, with each player acting upon the other, engaging in an intense mutually reinforcing feedback loop. Moreover, we see language evolution as a gradual process, continuous with the pre-linguistic cognitive abilities, which were engaged in a positive feedback loop with linguistic innovations, and where gene-culture co-evolution and cultural niche construction were the main driving forces. 相似文献
128.
129.
信息结构作为语言学的一个重要概念,在语言学、心理学和神经科学等领域进行了广泛的研究。其中,从焦点和背景这一维度对信息结构的研究最多。通常情况下,人们会重读焦点信息。本研究使用ERP技术,通过对话语篇考察了不同位置对比焦点和重读的一致性对口语语篇理解的影响。研究发现,对比焦点不受位置影响,稳定诱发中后部分布正波,且小句末尾焦点诱发的正效应早于小句内部。此外,重读相对于不重读在小句内部和末尾都诱发了正效应,并且出现在较晚的时间窗口。尽管焦点不重读相对于一致性重读没有诱发任何脑电效应,但背景重读相对背景不重读在小句末尾诱发了一个早期负效应。本研究表明,听者按照不同的方式、即时使用不同位置的对比焦点和重读信息建构语篇表征。 相似文献
130.
人们学习将感知到的客体按照不同的标准或规则分类存储,即类别学习。而工作记忆作为多种认知加工的基础,对类别学习具有重要作用。基于已有研究,分别梳理了言语工作记忆和视空工作记忆对基于规则和信息整合类别结构的影响。目前,执行功能是否影响内隐类别学习系统、工作记忆负荷对内隐外显类别学习系统的影响是否一致还存在争议。此外,工作记忆影响知觉类别学习的认知加工阶段尚不清晰。未来的研究还需明确工作记忆负荷对内隐和外显类别学习的影响,进一步验证工作记忆影响类别学习的认知加工阶段假设的合理性。 相似文献