共查询到20条相似文献，搜索用时 15 毫秒
1.
Herbert W. Marsh Bengt Muthén Tihomir Asparouhov Oliver Lüdtke Alexander Robitzsch Alexandre J. S. Morin 《Structural equation modeling》2013,20(3):439-476
This study is a methodological-substantive synergy, demonstrating the power and flexibility of exploratory structural equation modeling (ESEM) methods that integrate confirmatory and exploratory factor analyses (CFA and EFA), as applied to substantively important questions based on multidimentional students' evaluations of university teaching (SETs). For these data, there is a well established ESEM structure but typical CFA models do not fit the data and substantially inflate correlations among the nine SET factors (median rs = .34 for ESEM, .72 for CFA) in a way that undermines discriminant validity and usefulness as diagnostic feedback. A 13-model taxonomy of ESEM measurement invariance is proposed, showing complete invariance (factor loadings, factor correlations, item uniquenesses, item intercepts, latent means) over multiple groups based on the SETs collected in the first and second halves of a 13-year period. Fully latent ESEM growth models that unconfounded measurement error from communality showed almost no linear or quadratic effects over this 13-year period. Latent multiple indicators multiple causes models showed that relations with background variables (workload/difficulty, class size, prior subject interest, expected grades) were small in size and varied systematically for different ESEM SET factors, supporting their discriminant validity and a construct validity interpretation of the relations. A new approach to higher order ESEM was demonstrated, but was not fully appropriate for these data. Based on ESEM methodology, substantively important questions were addressed that could not be appropriately addressed with a traditional CFA approach. 相似文献
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Jiesi Guo Herbert W. Marsh Philip D. Parker Theresa Dicke Oliver Lüdtke Thierno M. O. Diallo 《Structural equation modeling》2019,26(4):529-556
In this study, we contrast two competing approaches, not previously compared, that balance the rigor of CFA/SEM with the flexibility to fit realistically complex data. Exploratory SEM (ESEM) is claimed to provide an optimal compromise between EFA and CFA/SEM. Alternatively, a family of three Bayesian SEMs (BSEMs) replace fixed-zero estimates with informative, small-variance priors for different subsets of parameters: cross-loadings (CL), residual covariances (RC), or CLs and RCs (CLRC). In Study 1, using three simulation studies, results showed that (1) BSEM-CL performed more closely to ESEM; (2) BSEM-CLRC did not provide more accurate model estimation compared with BSEM-CL; (3) BSEM-RC provided unstable estimation; and (4) different specifications of targeted values in ESEM and informative priors in BSEM have significant impacts on model estimation. The real data analysis (Study 2) showed that the differences in estimation between different models were largely consistent with those in Study1 but somewhat smaller. 相似文献
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This study intends to investigate the validity of a self-efficacy measure which is developed for predictive and diagnostic purposes concerning student teachers in competence-based education. CFA results delivered converging evidence for the multidimensionality of the student teacher self-efficacy construct and the bi-factor model as underlying structure, reflecting a teacher competence framework. Factor loadings of the bifactor model evidenced the theoretical assumption that incipient student teachers enter the programme with a global undifferentiated sense of teacher self-efficacy, having teaching experiences a further differentiation takes place to a partly differentiated sense of teacher self-efficacy. Logistic regression analysis revealed that the measure succeeds in predicting students’ first-year outcomes and delivered evidence for the diagnostic value of the scale. 相似文献
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Daniel H. Caro Andrés Sandoval-Hernández Oliver Lüdtke 《School Effectiveness & School Improvement》2013,24(3):433-450
The article employs exploratory structural equation modeling (ESEM) to evaluate constructs of economic, cultural, and social capital in international large-scale assessment (LSA) data from the Progress in International Reading Literacy Study (PIRLS) 2006 and the Programme for International Student Assessment (PISA) 2009. ESEM integrates the theory-generating approach of exploratory factor analysis (EFA) and theory-testing approach of confirmatory factor analysis (CFA). It relaxes the zero-loading restriction in CFA, allowing items to load on different factors simultaneously, and it provides measurement invariance tests across countries not available in EFA. A main criticism of international LSA studies is the extended use of indicators poorly grounded in theory, like socioeconomic status, that prevent the study of mechanisms underlying associations with student outcomes. This article contributes to addressing this criticism by providing statistical criteria to evaluate the fit of well-defined sociological constructs with the empirical data. 相似文献
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The purposes of this study were to (a) test the hypothesized factor structure of the Student-Teacher Relationship Scale (STRS; Pianta, 2001) for 308 African American (AA) and European American (EA) children using confirmatory factor analysis (CFA) and (b) examine the measurement invariance of the factor structure across AA and EA children. CFA of the hypothesized three-factor model with correlated latent factors did not yield an optimal model fit. Parameter estimates obtained from CFA identified items with low factor loadings and R2 values, suggesting that content revision is required for those items on the STRS. Deletion of two items from the scale yielded a good model fit, suggesting that the remaining 26 items reliably and validly measure the constructs for the whole sample. Tests for configural invariance, however, revealed that the underlying constructs may differ for AA and EA groups. Subsequent exploratory factor analyses (EFAs) for AA and EA children were carried out to investigate the comparability of the measurement model of the STRS across the groups. The results of EFAs provided evidence suggesting differential factor models of the STRS across AA and EA groups. This study provides implications for construct validity research and substantive research using the STRS given that the STRS is extensively used in intervention and research in early childhood education. 相似文献
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数字图书馆建设为远程服务体系提供了创新模式。从明确远程学生需求入手,分析了数字图书馆在远程教育中的优势,提出了构建数字图书馆远程教育的框架体系,并给出了实施过程中应注意的问题。 相似文献
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Minor cross-loadings on non-targeted factors are often found in psychological or other instruments. Forcing them to zero in confirmatory factor analyses (CFA) leads to biased estimates and distorted structures. Alternatively, exploratory structural equation modeling (ESEM) and Bayesian structural equation modeling (BSEM) have been proposed. In this research, we compared the performance of the traditional independent-clusters-confirmatory-factor-analysis (ICM-CFA), the nonstandard CFA, ESEM with the Geomin- or Target-rotations, and BSEMs with different cross-loading priors (correct; small- or large-variance priors with zero mean) using simulated data with cross-loadings. Four factors were considered: the number of factors, the size of factor correlations, the cross-loading mean, and the loading variance. Results indicated that ICM-CFA performed the worst. ESEMs were generally superior to CFAs but inferior to BSEM with correct priors that provided the precise estimation. BSEM with large- or small-variance priors performed similarly while the prior mean for cross-loadings was more important than the prior variance. 相似文献
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Sutapa Bose 《Open Learning》2013,28(2):120-134
Teacher education in India, including that offered by the open distance learning (ODL) system to thousands every year, imparts mainly pedagogic knowledge, although the need for integrated teacher education programmes has been underscored. As the Indira Gandhi National Open University (IGNOU), an ODL institution, will develop an integrated Bachelor of Education programme for secondary-level teachers, a model based on the Technological Pedagogical Content Knowledge (TPACK) framework has been proposed for developing and implementing it. The model takes cognisance of the systemic challenges to TPACK-based teacher education, but it does not envision radical changes in IGNOU’s teacher education framework for addressing these challenges. It includes propositions with theoretical underpinnings for redesigning the major components of the framework while retaining its basic structure. The model has been described in terms of its rationale, its structure and the way it envisages the progress of teacher trainees from a phase of learning with the help of self-learning material designed for imparting integrated theoretical knowledge to one whereby they apply such knowledge in simulated situations, and finally moving on to a phase of situated learning during internship. 相似文献
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袁松鹤 《广东广播电视大学学报》2010,19(6):13-18
现代远程网络课程不同于传统高校网络课程,它定位于对在线学习的全方位支持,重视学习资源、学习过程和学习支持服务。为提高现代远程教育资源建设水平,急需明确网络课程建设的内容框架。从设计类别、要素组成到具体内容对网络课程的建设内容进行梳理发现,网络课程建设的内容框架主要包括课程内容和课程网站两大类,课程内容以学习资源、学习活动、学习支持服务为要素,课程网站以课程首页和课程主页为要素。教学设计人员在教师与技术人员之间进行沟通,设计课程整体框架,三类人员共同搭建课程内容与课程网站之间的桥梁,形成完整的高质量的网络课程。 相似文献
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The growth of eLearning technologies has blurred the boundaries of educational modes to a point where distance education programs can be offered without drawing particular notice on campus. The experience of distance education staff working in campus‐focused universities and their perceptions of their chances of successfully planning and teaching by distance should inform evaluation of a university’s quality framework. In this case study, we report on the experience of distance educators at an Australian campus‐focused university. We identify organisational structure and culture as critical success factors for quality in distance education, with technology a, perhaps surprisingly, minor consideration. While the eLearning era has opened the door to a distance education cottage industry, eLearning strategy has failed to comprehensively prepare the way for the issues unique to distance education. The paper recommends that campus‐focused universities must protect their reputation by systematically assuring the quality of their (inevitable) distance offerings. 相似文献
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The primary aim of this study was to examine the reliability and validity of a Turkish version of the Distance Education Learning
Environment Survey (DELES) in post-secondary distance education. The second aim was to investigate empirically the conceptualisation
of the distance education learning environment as a singular latent construct, within a second-order factorial structure that
consists of six first-order factors. The DELES is a 34-item instrument for assessing social-psychological perceptions among
distance education students. The tested hypotheses concerned key antecedents and consequences of the factorial structure of
DELES in the Turkish context using confirmatory factor analyses. Principal component analysis of the Turkish data revealed
six main factors of interest, which corresponded to the hypothesised constructs in the original DELES. The data suggested
good reliability and validity for the Turkish DELES (DELES-TR) relative to the original version. Further, second-order analyses
were conducted with two complementary samples to demonstrate the validity of six dimensions of the DELES-TR and their contributions
to an overall factorial structure of social-psychological learning environment in distance education. Initial support for
the second-order factorial validity of DELES-TR was found. Results indicate that a dimensional model of DELES-TR with the
six first-order factors provided a superior fit to the data than first-order DELES-TR with six factors. Additionally, an investigation
was conducted regarding associations between the DELES-TR’s psychosocial scales and a student satisfaction scale. This study
is unique in its focus on the learning environment in distance education in the Turkish setting. 相似文献
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基于云存储的教学资源整合研究与实现 总被引：3，自引：2，他引：1
互联网的迅速发展,促进了现代远程教育的兴起。而教学资源的建设又是现代远程教育发展的基础。文章分析了教学资源的现状和面临的问题,介绍了云存储的基本概念、结构模型和构建云存储的工具,给出了基于云存储的教育资源整合方案的体系结构,最后对该体系结构进行了实现和性能测试。 相似文献
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Developments concerning report cards have led to a potential shift from reporting traditional grades to reporting multiple competencies within and across subjects. In this study, we analyzed the dimensional structure of the teacher judgments on a competency-based report card on fourth-grade elementary school students (N = 469). With a methodologically innovative approach of combining exploratory structural equation modeling (ESEM) and confirmatory factor analysis (CFA), we found one learning-oriented and one social-oriented generic subject-unspecific factor of competency judgments and single factors for each included subject. All subject factors showed relatively high correlations with the respective traditional grades. Second-order commonalities further indicated a general factor represented almost perfectly by the learning-oriented generic judgments. Our analyses generally justified the use of competency-based report cards in terms of the dimensional structure and the association with traditional grades. Further, generic subject-unspecific competency judgments contribute to disentangling the multidimensionality of teacher judgments. 相似文献
15.
现代远程教育考试应是过程而非环节——一种考试改革的理论与行动框架 总被引：1，自引：1，他引：0
吴国祥 《中国远程教育(综合版)》2008,(6):26-31
现代远程教育考试到底是过程还是环节,理论界没有明确说法。本文试图以新的思维回答这一问题,并期望由此建立符合现代远程教育规律的考试理论框架。在总结实践经验和理论分析的基础上,作者得出了现代远程教育的考试应是过程而非环节的结论。在论证过程中,其着眼点也始终放在落实学习过程上,认为学习过程难以落实才是远程教育考试改革的根本动因,进而认为在自主学习条件下,落实学习过程不仅是考试改革成败的关键,也是保障和改善现代远程教学质量的根本途径。作者强调,把考试由环节转化为过程不仅是技术问题,更是思想方法问题。 相似文献
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王正才 《贵州广播电视大学学报》2020,(1):5-9
远程教育内部质量诊改信息系统是远程教育质量保障工作落到实处和常态化的关键所在。根据远程教育数据分散、数据杂乱、考量对象个性化等因素,基于Hadoop大数据框架,设计远程教育内部质量诊改信息系统架构,对关键问题进行分析并提出策略,为今后远程教育质量保障工作的信息化和现代化奠定基础。 相似文献
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Kristen Lethbridge Mary-Anne Andrusyszyn Carroll Iwasiw Heather K.S. Laschinger Rajulton Fernando 《Assessment & Evaluation in Higher Education》2013,38(3):303-325
Reflective thinking is often stated as a learning outcome of baccalaureate nursing education, and as a characteristic of a competent professional; however, no consistent method exists to assess the extent to which students engage in reflective thinking. To address this need, Kember and Leung developed and tested a self-report questionnaire based on Mezirow’s conceptualisation of levels of reflective thinking. The purpose of this study was to test the psychometric properties of the Reflection Questionnaire, developed by Kember and Leung. A convenience sample (n?=?538) of third-year baccalaureate nursing students from four collaborative nursing programmes in Ontario was used. Ethical approval was secured from 10 sites. Second-order confirmatory factor analyses (CFA) were used to test the factor structure of the Reflection Questionnaire. This research was part of a larger study on reflective thinking and is a first step in validating a four-level measure of reflective thinking, in educational environments, with baccalaureate nursing students. The results of the second-order CFA provide support for the construct validity of reflective thinking. Results of this study contribute to the evidence supporting the reliability and validity of the questionnaire. Nurse educators can use this information when implementing the questionnaire, and learning the extent to which students are engaging in the reflective thinking process. 相似文献
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本文以“论构建远程教育传播理论体系”为题,提出了远程教育是一个信息传播过程,强调以传播理论、系统理论等为指导,研究远程教育、构建远程教育传播理论体系的必要性与可能性,并对其理论构架提出了基本设想。 相似文献
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Statistics literacy is a growing part of our lives. However, around 75% of social science undergraduate students experience moderate to high levels of statistics anxiety, characterized by troubling thoughts, stress and an aversion to statistical content or to learning situations using statistics. The aims of the study were to examine the psychometric properties of the Hebrew version of the Statistical Anxiety Rating Scale, and to unfold the underlying structure of the construct as perceived by 163 pre-service teachers in an Israeli college of education. Multidimensional scaling analysis (MDS) confirms the confirmatory factor analysis (CFA) findings but highlights the importance of identifying the context of anxiety (statistics course vs. statistics as a distinct discipline) and the locus of anxiety (internal vs. external). The findings can help teacher educators better monitor their students’ statistics anxiety and assist them in implementing appropriate ways of reducing it. 相似文献
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苑青松 《安徽广播电视大学学报》2009,(3):41-44
群育是一种历史悠久的教育内容和教育观念,它对于促进人的全面发展以及促进人与社会和谐发展有着重要的作用。但是,作为教育的一项重要内容,群育在现代教育中却逐渐在淡化。基于这样的现状,如何重新认识群育并有效地开展群育,这个问题尤其值得关注。有鉴于此,本文以课程为切入点,从群育的内涵、意义入手,分析了群育在现代失落的原因,并提出了群育重构的一些思路。 相似文献