The effects of part-task and whole-task instructional approaches on acquisition and transfer of a complex cognitive skill     

Jung Lim  Robert A. Reiser  Zane Olina 《Educational technology research and development : ETR & D》2009,57(1):61-77

This study was designed to investigate the effects of two instructional approaches (whole-task versus part-task) and two levels of learner prior knowledge (lower versus higher) on learner acquisition and transfer of a complex cognitive skill. Participants were 51 undergraduate pre-service teachers. In the part-task condition, a complex skill (preparing a grade book using Excel) was decomposed into a series of smaller tasks, each of which was demonstrated and practiced separately. In the whole-task condition, which was based on the 4C/ID-model (van Merriënboer 1997), learners were exposed to the entire complex skill from the beginning of the instruction and were required to practice performing a series of whole tasks throughout the unit. Results indicated that the whole-task group performed significantly better than the part-task group on a skill acquisition test and a transfer test. Possible reasons for these findings and suggestions for future research are discussed.  相似文献   

＂I don＇t see color,I only see children!＂： A study of teachers＇ color-blindness for Asian students/family     

Seungho Moon  Jeesun Jung  Yoo-seon Bang  Kyee Yum Kwon  Younjung Suh 《美中教育评论》2009,6(8):80-84

The purpose of this study is to explore USA educators＇ resistance toward cultural awareness for Korean students and families in the New York metropolitan area. The authors aim to challenge teachers＇ color-blindness that is widely spread among USA educators. Guided by critical race theory, the authors show that the perceived fairness of color-blindness could cause struggles for Korean parents and students in American schools. The authors posit USA teachers need to thoroughly understand that if a teacher does not see color, then s/he does not really see children. This study, hopefully, will help educators recognize the necessity of understanding diverse ethnic parents＇ perspectives and needs. Also, this study will provide an opportunity for educators to rethink assumptions that are embedded in color-blindness, and advance muiticultural education that is more culturally relevant and responsive for different ethnic/racial groups＇ needs.  相似文献   

Decolonizing educational/curriculum studies in East Asia: problematizing shadow education in South Korea     

Jung Jung-Hoon 《Inter-Asia Cultural Studies》2018,19(2):269-281

This essay review critically engages Young Chun Kim's book, Shadow Education and the Curriculum and Culture of Schooling in South Korea, by responding to two central questions at its heart: What does decolonization of educational research mean and what does it look like? In what way can cultural studies of countries with histories of colonized educational systems challenge the inertia to recapitulate colonized historical consciousness? Kim provides theoretical and empirical foundations for generating intellectual space that reveals the dialectical relationship between the dominant modes of discourse in educational research and aspirations of the colonized to envision their own educational culture and history.  相似文献   

Does exercise have a protective effect on cognitive function under hypoxia? A systematic review with meta-analysis     

Myungjin Jung  Liye Zou  Jane Jie Yu  Seungho Ryu  Zhaowei Kong  Lin Yang  Minsoo Kang  Jingyuan Lin  Hong Li  Lee Smith  Paul D. Loprinzi 《运动与健康科学(英文)》2020,9(6):562-577

ObjectiveThis study aimed to examine (1) the independent effects of hypoxia on cognitive function and (2) the effects of exercise on cognition while under hypoxia.MethodsDesign: Systematic review with meta-analysis. Data sources: PubMed, Scopus, Web of Science, PsychInfo, and SPORTDiscus were searched. Eligibility criteria for selecting studies: randomized controlled trials and nonrandomized controlled studies that investigated the effects of chronic or acute exercise on cognition under hypoxia were considered (Aim 2), as were studies investigating the effects of hypoxia on cognition (Aim 1).ResultsIn total, 18 studies met our inclusionary criteria for the systematic review, and 12 studies were meta-analyzed. Exposure to hypoxia impaired attentional ability (standardized mean difference (SMD) = –0.4), executive function (SMD = –0.18), and memory function (SMD = –0.26), but not information processing (SMD = 0.27). Aggregated results indicated that performing exercise under a hypoxia setting had a significant effect on cognitive improvement (SMD = 0.3, 95% confidence interval: 0.14 – 0.45, I² = 54%, p < 0.001). Various characteristics (e.g., age, cognitive task type, exercise type, exercise intensity, training type, and hypoxia level) moderated the effects of hypoxia and exercise on cognitive function.ConclusionExercise during exposure to hypoxia improves cognitive function. This association appears to be moderated by individual and exercise/hypoxia-related characteristics.  相似文献   

Platform Competition in the Video Game Console Industry: Impacts of Software Quality and Exclusivity on Market Share     

Haeyop Song  Jaemin Jung 《Journal of Media Economics》2017,30(3):99-120

This study examines impacts of the complementary products on platform competition, in the context of video game consoles. Using 10-year panel data, the results demonstrate that high-quality software has a disproportionately significant effect on hardware demand. The high-quality exclusive software is an important factor affecting consumers’ utility, and it tends to be developed in hardware manufacturers’ vertically integrated subsidiaries. In addition, this study also identifies that high-quality multi-homing software plays a role in platform growth in a platform’s later stage.  相似文献   

Two-Step Approach to Partial Factorial Invariance: Selecting a Reference Variable and Identifying the Source of Noninvariance     

Eunju Jung  Myeongsun Yoon 《Structural equation modeling》2017,24(1):65-79

To date, no effective empirical method has been available to identify a truly invariant reference variable (RV) in testing measurement invariance under a multiple-group confirmatory factor analysis. This study proposes a method that, in selecting an RV, uses the smallest modification index (min-mod). The method’s performance is evaluated using 2 models: (a) a full invariance model, and (b) a partial invariance model. Results indicate that for both models the min-mod successfully identifies a truly invariant RV (Study 1). In Study 2, we use the RV found in Study 1 to further evaluate the performance of item-by-item Wald tests at locating a noninvariant variable. The results indicate that Wald tests overall performed better with an RV selected in a partial invariance model than an RV selected in a full invariance model, although in certain conditions their performances were rather similar. Implications and limitations of the study are also discussed.  相似文献   

Parental involvement,children's aspirations,and achievement in new immigrant families     

Eunjoo Jung  Yue Zhang 《The Journal of educational research》2016,109(4):333-350

The authors investigated the relationships among multiple aspects of parental involvement (English proficiency, school involvement, control and monitoring of children), children's aspirations, and achievement in new immigrant families in the United States. They used data on immigrant parents and school-age children (N = 1,255) from the New Immigrant Survey to examine immigrant families from diverse backgrounds. Structural equation modeling analyses revealed that parental English proficiency and involvement in school education are related to children's academic achievement, cognitive development, and English language ability, directly as well as indirectly, through children's educational aspirations. Parental control and monitoring is not beneficial to immigrant children's cognitive development, although variations were found across different groups. They also observed intriguing findings regarding gender and racial or ethnic diversity. Based on their findings, they provide recommendations for the fostering of academic success and the design and implementation of educational programs and practices for immigrant children.  相似文献   

The effects of prior reputation and type and duration of charitable donation on celebrities’ personal public relations: an investigation based on attribution theory     

Sungwook Hwang  Hyo Jung Kim 《亚洲交流杂志》2017,27(3):304-321

Charitable donations made by celebrities are being increasingly reported by news media in South Korea. This experimental study has examined the effects of celebrities’ prior reputations, and the duration and type of charitable donation they perform, on young participants’ evaluations of these celebrities (i.e. motive attribution, attitudes toward the celebrities, and related purchase intentions). The results ascertained the main effects of prior reputation and duration and type of donation on the dependent variables. Most notably, the results also found the interaction effect of duration and type of donation on the participants’ evaluation of motive attribution. That is, participants who were exposed to news stories concerning celebrities’ volunteer efforts, or monetary contributions that involve volunteer efforts, performed over long periods of time reported the highest level of motive attribution. Based on these results, this study discussed theoretical and practical implications.  相似文献   

The effects of job autonomy and job satisfaction on burnout among careworkers in long-term care settings: Policy and practice implications for Japan and South Korea     

Bum Jung Kim  Hisanori Ishikawa  Lin Liu  Mie Ohwa  Yukiko Sawada  Hyo Yeon Lim 《Educational gerontology》2018,44(5-6):289-300

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Implementation and Evaluation of a Condom Availability Program on a College Campus: Lessons From the Field     

Heather P. Eastman-Mueller  Jessica R. Gomez-Scott  Ae-Kyung Jung  Kristofer Hagglund 《American journal of sexuality education》2016,11(3):189-204

The U.S. Centers for Disease Control and Prevention advocate access to condoms as a critical sexual health prevention strategy. The purpose of this article is to discuss the implementation and evaluation of a condom availability program using dispensing machines in residence halls at a Midwestern U.S. university. Undergraduate students (N = 337) living in on-campus housing participated in a survey about their utilization of condom dispensers at the beginning and end of three academic years (2008–2009, 2009–2010, and 2010–2011). Questions also addressed students' attitudes toward the condom dispensers and related sexual behavior. Results indicated that the presence of condom machines did not increase rates of sexual activity (a concern of university administrators), but there was also no improvement in rates of unprotected sex. Overall, students reported high levels of satisfaction with the condom availability program. Implementation challenges are discussed and recommendations for universities and colleges wishing to execute similar programs are provided.  相似文献