Testing Factorial Invariance With Unbalanced Samples     

Myeongsun Yoon  Mark H. C. Lai 《Structural equation modeling》2018,25(2):201-213

In testing the factorial invariance of a measure across groups, the groups are often of different sizes. Large imbalances in group size might affect the results of factorial invariance studies and lead to incorrect conclusions of invariance because the fit function in multiple-group factor analysis includes a weighting by group sample size. The implication is that violations of invariance might not be detected if the sample sizes of the 2 groups are severely unbalanced. In this study, we examined the effects of group size differences on results of factorial invariance tests, proposed a subsampling method to address unbalanced sample size issue in factorial invariance studies, and evaluated the proposed approach in various simulation conditions. Our findings confirm that violations of invariance might be masked in the case of severely unbalanced group size conditions and support the use of the proposed subsampling method to obtain accurate results for invariance studies.  相似文献   

Varying criticality of key success factors of national e-Strategy along the status of economic development of nations     

Jeongwon Yoon  Myungsin Chae 《Government Information Quarterly》2009

Many studies mention the importance of national e-Strategy as it is a vital contributing factor for ICT-enabled development. However, it is difficult to find a conceptual framework that suggests how the national e-Strategy should be defined and applied by the target country. This creates more confusion for policy makers. This paper reviews previous research on national e-Strategies to recognize its significance as a major contributing factor. Based on that, this research defines the critical success factors of national e-Strategy and investigates the possibility of prioritizing factors by the scale of economy through a Delphi survey. By reviewing the evaluated status of e-Readiness and co-relating the evaluation with economic status, we may further investigate the significance of the digital divide and national e-Strategy. The outcome of this research may be applicable in differentiating critical success factors from general ingredients of National e-Strategy.  相似文献   

The geography of school choice in a city with growing inequality: the case of Vancouver     

Ee-Seul Yoon  Christopher Lubienski  Jin Lee 《教育政策杂志》2018,33(2):279-298

This analysis aims to measure the impact of school choice policy on secondary school students’ enrolment patterns within the social geography of Vancouver, an increasingly polarized global city. The rationale for the study is to examine the impact of ‘education market’ reforms on the socio-economic composition of schools in a Canadian context, where a social welfare commitment to educational equality is being replaced by market-oriented policies and increasing social inequality. Our study is guided by Bourdieu’s theory of site in considering whether growing inequality and polarization of wealth in a city are correlated with the ways families choose schools. We apply a geographical methodology (Geographic Information System) to delineate spatial patterns of choosing schools. Our analysis shows that those who opt out of the under-subscribed schools come from the neighborhoods with relatively higher capital than those who remain in their assigned schools. Also, those who opt into the over-subscribed schools in the affluent areas come from the neighborhoods with above-average levels of capital in Vancouver. Overall, we find that the spatial inequality in school choice generally follows the uneven distribution of capital/wealth across the city. The pattern of student mobility indicates an increasing level of segregation.  相似文献   

Sensitivity and precision of adverse effects search filters in MEDLINE and EMBASE: a case study of fractures with thiazolidinediones     

Golder S  Loke YK 《Health information and libraries journal》2012,29(1):28-38

Background: Search filters have been developed in MEDLINE and EMBASE to help overcome the challenges of searching electronic databases for information on adverse effects. However, little evaluation of their effectiveness has been carried out. Objectives: To measure the sensitivity and precision of available adverse effects search filters in MEDLINE and EMBASE. Methods: A case study systematic review of fracture related adverse effects associated with the use of thiazolidinediones was used. Twelve MEDLINE search strategies and three EMBASE search strategies were tested. Results: Nineteen relevant references from MEDLINE and 24 from EMBASE were included in the review. Four search filters in MEDLINE achieved high sensitivity (95 or 100%) with an improved level of precision from searches without any adverse effects filter. High precision in MEDLINE could also be achieved (up to 53%) using search filters that rely on Medical Subject Headings. No search filter in EMBASE achieved high precision (all were under 5%) and the highest sensitivity in EMBASE was 83%. Conclusions: Adverse effects search filters appear to be effective in MEDLINE for achieving either high sensitivity or high precision. Search filters in EMBASE, however, do not appear as effective, particularly in improving precision.  相似文献   

Critical Issues in Teaching a Multicultural Counseling Course     

Eunju Yoon  Gihane Jérémie-Brink  Kathleen Kordesh 《International journal for the advancement of counseling》2014,36(4):359-371

A Multicultural Counseling course (MCC) brings unique challenges and rewards to both instructors and students. Given its unique challenges, the process of teaching a MCC is as important as, or even more important than, the content. Drawing from extant literature and the authors’ experiences, this paper discusses such topics as what to teach, how to teach, classroom dynamics, instructors’ issues, and students’ issues to provide a concise, practical, and comprehensive framework for teaching such difficult but essential courses.  相似文献   

Being Black, Male, and Gifted in Miami: Prevalence and Predictors of Placement in Elementary School Gifted Education Programs     

Adam Winsler  Deepti Gupta Karkhanis  Yoon Kyong Kim  Jerome Levitt 《The Urban Review》2013,45(4):416-447

Although it is well established that Black male students are underrepresented in gifted educational programs in the United States, due to a scarcity of longitudinal prospective research, little is known about the protective factors at the child, family, and school level that increase the probability of Black male students being identified as gifted during early elementary school. Using data from the Miami School Readiness Project, we followed 6,926 low-income Black males from preschool through 5th grade to describe trajectories for the 453 Black males (6.5 %) who were identified as gifted, and examined child, family, and preschool variables associated with gifted classification. Boys were most commonly identified as gifted in first and second grade, and 15 % of the identified boys did not appear to be receiving gifted courses. Hierarchical multiple logistic regression analyses revealed that being classified as gifted in early elementary school was more likely for Black males who (a) attended public school pre-K programs at age four, (b) had higher cognitive, language, fine motor, behavioral, and emergent literacy school readiness skills before entering kindergarten, (c) spoke a language other than English at home, (d) were older upon entering kindergarten, (e) received higher grades in school, and (f) scored higher on standardized tests of math and reading. Predictors of gifted identification in the kindergarten year were different and weaker compared to identification in later years. Implications for early identification and intervention for talented Black males are discussed.  相似文献   

Towards a user-oriented thesaurus for non-domain-specific image collections     

JungWon Yoon 《Information processing & management》2009

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Introduction to special issue: models and tools for systems learning and instruction     

Susan A. Yoon  Cindy Hmelo-Silver 《Instructional Science》2017,45(1):1-4

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Reflections from Within: Ten Years of Service to HEQ          下载免费PDF全文

Yoon K. Pak  Christopher M. Span  James D. Anderson 《History of education quarterly》2015,55(4):407-412

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Becoming an academic: the role of doctoral capital in the field of education     

Jude Walker  EeSeul Yoon 《高等教育研究与发展》2017,36(2):401-415

This paper draws on Bourdieu’s concepts of field, capital and habitus to examine the learning and enculturation of alumni of a Canadian PhD programme in the discipline of Education. We introduce the concept of doctoral capital to help explain how and why some PhD graduates go on to secure faculty positions and others do not. Our research suggests that certain existing and acquired academic practices, attributes, dispositions and behaviours collectively form a type of doctoral capital that alumni can then use in the academic marketplace.  相似文献