排序方式: 共有63条查询结果,搜索用时 15 毫秒
21.
Yong Jin Kim Jong Man Lee Chulmo Koo Kichan Nam 《International Journal of Information Management》2013
Recent studies on IT outsourcing have examined the effect of contract specification and relationship strength on IT outsourcing performance in a separate manner. Previous studies, however, ignored the importance of the governance effectiveness that bonds contractual control and relationship strength together to deliver expected outcomes in IT outsourcing exchange. In this paper, we propose a model of IT outsourcing management where governance effectiveness mediates the effect of both contractual control and relationship strength on IT outsourcing performance. We collected data from 143 client companies of IT outsourcing and analyzed it using the PLS method. Our findings show that both contract specification and relationship strength significantly influence governance effectiveness, although contract specification carries the more effect on governance effectiveness than relationship strength does. The governance effectiveness in turn mediates the effect of contract specification and relationship strength on three sub-dimensions of outsourcing performance: cost efficiency, performance improvement, and overall satisfaction. The results and implications are further discussed. 相似文献
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Computer-based scaffolding plays a pivotal role in improving students’ higher-order skills in the context of problem-based learning for Science, Technology, Engineering and Mathematics (STEM) education. The effectiveness of computer-based scaffolding has been demonstrated through traditional meta-analyses. However, traditional meta-analyses suffer from small-study effects and a lack of studies covering certain characteristics. This research investigates the effectiveness of computer-based scaffolding in the context of problem-based learning for STEM education through Bayesian meta-analysis (BMA). Specifically, several types of prior distribution information inform Bayesian simulations of studies, and this generates accurate effect size estimates of six moderators (total 24 subcategories) related to the characteristics of computer-based scaffolding and the context of scaffolding utilization. The results of BMA indicated that computer-based scaffolding significantly impacted (g = 0.385) cognitive outcomes in problem-based learning in STEM education. Moreover, according to the characteristics and the context of use of scaffolding, the effects of computer-based scaffolding varied with a range of small to moderate values. The result of the BMA contributes to an enhanced understanding of the effect of computer-based scaffolding within problem-based learning. 相似文献
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The purpose of this study is to examine how organizational‐learning culture, cultural intelligence (CQ), and transformational leadership influence job performance. A total of 685 responses from the government sector in South Korea were analyzed by employing the structural equation modeling (SEM) method. The findings indicated that organizational‐learning culture, CQ, and transformational leadership positively influenced employees' job performance. In addition, organizational‐learning culture and CQ significantly affected transformational leadership. The study implies that employees' high level of CQ can help them recognize their leaders' transformational behaviors and enhance employees' job performance. 相似文献
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Frances Lawrenz Nathan B. Wood Allison Kirchhoff Nam Keol Kim Arthur Eisenkraft 《科学教学研究杂志》2009,46(9):961-976
Much research has focused on student views about physics concepts, with an emphasis on the identification of alternative conceptions, and how curricula and professional development may ameliorate the situation. However, there has been little work on determining the extent of, and in separating, the student and teacher/classroom level variables that may impact student physics achievement. This study examined the effect of different student and teacher/classroom level variables on student understanding of physics concepts using hierarchical linear modeling (HLM), a regression based technique. The data were collected from 68 different teachers and 3,119 students who were using a reform curriculum, Active Physics. Teachers and students completed surveys asking about their beliefs, their classes and their personal characteristics. Students also completed a physics achievement test. The data show that students of teachers who used Active Physics for a greater portion of the year scored higher on the achievement test than did students of teachers who did not use the curriculum as much. Furthermore, the data show that the achievement gap was narrowed between boys and girls and between students with different attitudes toward physics. Additionally teachers who received inservice instruction on how to implement Active Physics narrowed the gap between students with different views of their classroom involvement. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 46: 961–976, 2009 相似文献
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Chris Rasmussen Oh Nam Kwon Karen Allen Karen Marrongelle Mark Burtch 《Asia Pacific Education Review》2006,7(1):85-93
This paper provides an overview of the Inquiry-Oriented Differential Equations (IO-DE) project and reports on the main results of a study that compared students’ beliefs, skills, and understandings in IO-DE classes to more conventional approaches. The IO-DE project capitalizes on advances within mathematics and mathematics education, including the instructional design theory of Realistic Mathematics Education and the social negotiation of meaning. The main results of the comparison study found no significant difference between project students and comparison students on an assessment of routine skills and a significant difference in favor of project students on an assessment of conceptual understanding. Given these encouraging results, the theoretical underpinnings of the innovative approach may be useful more broadly for undergraduate mathematics education reform. 相似文献
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Sung Youl Park Soo-Wook Kim Seung-Bong Cha Min-Woo Nam 《Interactive Learning Environments》2013,21(4):418-428
This study investigated the effectiveness of e-learning by comparing the learning outcomes in conventional face-to-face lectures and e-learning methods. Two video-based e-learning contents were developed based on the rapid prototyping model and loaded onto the learning management system (LMS), which was available at http://www.greenehrd.com. Eighty-five Korean agricultural high school students were randomly assigned into the two groups: face-to-face lecture (control group), and video-based e-learning (experimental group). The students of the experimental group logged onto the LMS in the school computer lab and completed each e-learning module. All students were required to take a pretest and posttest before and after learning under the direction of the subject teachers. One-way analysis of variance (ANOVA) was used to examine any difference between the two groups in terms of learning outcomes. One-way analysis of covariance (ANCOVA) was also administered to verify whether there was any difference between the two groups after controlling for the covariate variable: pretest score. According to the results, e-learning resulted in better learning outcomes than face-to-face lecturing. These findings suggest that the use of well designed and appropriately applied e-learning could be worthy even in agricultural education, which stresses hands-on experience and lab activities. Further research should focus on a different e-learning content type in different agricultural subject fields and its relationship with learning outcome. 相似文献
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Hye‐Eun Chu Eun Ah Lee Hee Ryung Ko Dong Hee Shin Moon Nam Lee Byeong Mee Min 《International Journal of Science Education》2013,35(6):731-746
The purpose of this study was to investigate Korean children’s environmental literacy levels and the variables that affect their environmental literacy. An instrument, the Environment Literacy Instrument for Korean Children (ELIKC), was developed that measures four different dimensions (knowledge, attitude, behaviour, and skills) using 69 items and 13 demographic variables. The ELIKC was administered to 969 Year 3 students from large cities, medium‐sized cities, and rural areas. The students were given 80 min to answer the questions. Statistical analysis was performed on each of the scales that make up the ELIKC and a multivariate analysis of variance was performed to identify the variables that affect environmental literacy. Results indicate that the correlation between attitude and behaviour is the strongest while that between knowledge and behaviour is the weakest. Also, it was found that gender, parents’ school background, and the source from where students obtain environmental information affect all categories of environmental literacy. 相似文献
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Kim Nam Ju Vicentini Cristiane Rocha Belland Brian R. 《International Journal of Science and Mathematics Education》2022,20(2):215-236
International Journal of Science and Mathematics Education - Success in problem-based learning requires both strong information literacy to search for, evaluate, and use information effectively,... 相似文献
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Jung‐Lim Hong Kew‐Cheol Shim Nam‐Kee Chang 《International Journal of Science Education》2013,35(8):989-999
This study analyses middle school students’ interests in biology to provide information on instructional strategies and curriculum development in Korea. An instrument that measures interests was developed based on the middle school biology curriculum. It consists of 64 three‐point Likert‐type items (scores range from 0 to 2). The two components, ‘topic’ and ‘activity’, are composed of 64 items. The topic component and the activity component contain 11 domains and six domains respectively. Data were collected from 267 middle school students in Seoul (male: 169, female: 107). The levels of interest in topic and activity were almost the same and not high. The highest interest domains were ‘genetics’ in topics and ‘observing through a microscope’ in activities. The interest levels in the domain ‘plant morphology’ and ‘plant‐related activity’ were the lowest in each component. The interest level of the eighth graders was the highest found among students. Interest levels of females were lower than those of males in ‘environment and ecosystem’, ‘animal reproduction’ and ‘animal morphology’, but higher in ‘plant morphology’ and ‘plant related activity’ (p < 0.05). Among the topics, the ‘human biology’ domain correlated positively with the domains ‘genetics’, ‘environment and ecosystem’ and ‘respiration of animal and plant’. The correlation between the domains of ‘plant reproduction and nutrition’ and ‘plant development’ was significant in ‘activity’ (r > 0.50, p < 0.001). Consistencies in interests were suggested with respect to instructional strategy and curriculum design. 相似文献