Assessing and tracking students’ problem solving performances in anchored learning environments     

Brian A. Bottge  Enrique Rueda  Jung Min Kwon  Timothy Grant  Perry LaRoque 《Educational technology research and development : ETR & D》2009,57(4):529-552

The purpose of this randomized experiment was to compare the performance of high-, average-, and low-achieving middle school students who were assessed with parallel versions of a computer-based test (CBT) or a paper-pencil test (PPT). Tests delivered in interactive, immersive environments like the CBT may have the advantage of providing teachers with diagnostic tools that can lead to instruction tailored to the needs of students at different achievement levels. To test the feasibility of CBT, students were randomly assigned to the CBT or PPT test conditions to measure what they had learned from an instructional method called enhanced anchored math instruction. Both assessment methods showed that students benefited from instruction and differentiated students by achievement status. The navigation maps generated from the CBT revealed that the low-achieving students were able to navigate the test, spent about the same amount of time solving the subproblems as the more advanced students, and made use of the learning scaffolds.

Brian A. BottgeEmail:

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Building world-class research university: The Brain Korea 21 project     

Jung Cheol Shin 《Higher Education》2009,58(5):669-688

This study evaluated the effects of South Korea’s Brain Korea 21 (BK 21) project, a special research funding program designed to build world-class research university. The effects were measured by examining the frequency of article publications in SCI journals during the 1995–2005 period. The results of the analysis indicated that the growth of research publications from Korean research universities was increased significantly following the implementation of the BK 21 project in 1999. In addition, during the period under study, four research universities (Yonsei, Korea, Sungkyunkwan, and Hanyang) were newly emerged. However, the growth rate of research publications was not different from that of the US and Japan, and even less than that of China. Thus, although the BK 21 project contributed to the growth of research publications of Korean universities, the project did not lessen the gap between Korea universities and world-class research universities in the US or Japan in number of publications.  相似文献   

Is the diagnosis of physical abuse changed when Child Protective Services consults a Child Abuse Pediatrics subspecialty group as a second opinion?     

James Anderst  Nancy Kellogg  Inkyung Jung 《Child abuse & neglect》2009,33(8):481-489

ObjectivesTo characterize the changes regarding the diagnosis of physical abuse provided to Child Protective Services (CPS) when CPS asks a Child Abuse Pediatrics (CAP) specialty group for a second opinion and works in concert with that CAP group.MethodsSubjects were reported to CPS for suspected physical abuse and were first evaluated by a physician without specialized training in Child Abuse Pediatrics (non-CAP physician). Subjects were then referred to the area's only Child Abuse Pediatrics (CAP physician) group, located in a large metropolitan pediatrics center in the United States, for further evaluation. The diagnoses regarding abuse provided by CAP physicians working in concert with CPS were compared to those provided to CPS by other physicians.ResultsTwo hundred consecutive patients were included in the study. In 85 (42.5%) cases, non-CAP physicians did not provide a diagnosis regarding abuse, despite initiating the abuse report to CPS or being asked by CPS to evaluate the child for physical abuse. Of the remaining 115 cases, the diagnosis regarding abuse differed between non-CAP physicians and CAP physicians working in concert with CPS in 49 cases (42.6%; κ = .14; 95% CI, ?.02, .29). In 40 of the 49 cases (81.6%), CAP assessments indicated less concern for abuse when compared to non-CAP assessments. Differences in diagnosis were three times more likely in children from a nonurban location (OR 3.24; 95% CI, 1.01, 11.36).ConclusionsIn many cases of possible child physical abuse, non-CAP providers do not provide CPS with a diagnosis regarding abuse despite initiating the abuse investigation or being consulted by CPS for an abuse evaluation. CPS consultation with a CAP specialty group as a second opinion, along with continued information exchange and team collaboration, frequently results in a different diagnosis regarding abuse. Non-CAP providers may not have time, resources, or expertise to provide CPS with appropriate abuse evaluations in all cases.Practice implicationsThough non-CAP providers may appropriately evaluate many cases of physical abuse, the diagnosis regarding abuse provided to CPS may be changed in some cases when CAP physicians are consulted and actively collaborate with CPS investigators. Availability of Child Abuse Pediatrics subspecialty services to investigators is warranted.  相似文献   

Inducing self-rotation of cells with natural and artificial melanin in a linearly polarized alternating current electric field     

Mengxing Ouyang  Wing Ki Cheung  Wenfeng Liang  John D. Mai  Wing Keung Liu  Wen Jung Li 《Biomicrofluidics》2013,7(5)

The phenomenon of self-rotation observed in naturally and artificially pigmented cells under an applied linearly polarized alternating current (non-rotating) electrical field has been investigated. The repeatable and controllable rotation speeds of the cells were quantified and their dependence on dielectrophoretic parameters such as frequency, voltage, and waveform was studied. Moreover, the rotation behavior of the pigmented cells with different melanin content was compared to quantify the correlation between self-rotation and the presence of melanin. Most importantly, macrophages, which did not originally rotate in the applied non-rotating electric field, began to exhibit self-rotation that was very similar to that of the pigmented cells, after ingesting foreign particles (e.g., synthetic melanin or latex beads). We envision the discovery presented in this paper will enable the development of a rapid, non-intrusive, and automated process to obtain the electrical conductivities and permittivities of cellular membrane and cytoplasm in the near future.  相似文献   

Putting the unit in pre-service secondary teachers’ unit circle     

Kevin C. Moore  Kevin R. LaForest  Hee Jung Kim 《Educational Studies in Mathematics》2016,92(2):221-241

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OCCUPATIONAL/CAREER INDECISION FOR ECONOMICALLY DISADVANTAGED HIGH SCHOOL STUDENTS OF HIGH INTELLECTUAL ABILITY: A MIXED‐METHODS COGNITIVE PROCESS MODEL          下载免费PDF全文

Jae Yup Jung  Marie Young 《Psychology in the schools》2017,54(7):718-735

A mixed‐methods design was employed to identify the cognitive processes that lead to occupational/career indecision for economically disadvantaged adolescents of high intellectual ability. In the first phase, interview data collected from 26 economically disadvantaged intellectually gifted Australian adolescents were analyzed using grounded theory to develop two alternative models of cognitive processes that lead to occupational/career indecision. In the second phase, these models were quantitatively tested and refined using structural equation modeling of survey data collected from 917 economically disadvantaged intellectually gifted Australian adolescents. The finally accepted model, identified using a competing models strategy, suggested that valuing the thoughts of family on general matters is positively predictive of a desire to live up to one's potential and the experience of amotivation about the occupational decision. In turn, occupational amotivation appears to be positively associated with occupational indecision, but negatively associated with multipotentiality and a desire to fulfill one's potential.  相似文献   

Cultivating divergent thinking in mathematics through an open-ended approach     

Oh Nam Kwon  Jee Hyun Park  Jung Sook Park 《Asia Pacific Education Review》2006,7(1):51-61

The purpose of this study was to develop a program to help cultivate divergent thinking in mathematics based on open-ended problems and to investigate its effect. The participants were 398 seventh grade students attending middle schools in Seoul. A method of pre- and post-testing was used to measure mainly divergent thinking skills through open-ended problems. The results indicated that the treatment group students performed better than the comparison students overall on each component of divergent thinking skills, which includes fluency, flexibility, and originality. The developed program can be a useful resource for teachers to use in enhancing their students’ creative thinking skills. An open-ended approach in teaching mathematics suggested in this paper may provide a possible arena for exploring the prospects and possibilities of improving mathematical creativity.  相似文献   

Stress in Japanese learners engaged in online collaborative learning in English     

Insung Jung  Masayuki Kudo  Sook‐Kyoung Choi 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(6):1016-1029

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Academics job satisfaction and job stress across countries in the changing academic environments   总被引：1，自引：0，他引：1  

Jung Cheol Shin  Jisun Jung 《Higher Education》2014,67(5):603-620

This study examined job satisfaction and job stress across 19 higher education systems. We classified the 19 countries according to their job satisfaction and job stress and applied regression analysis to test whether new public management has impacts on either or both job satisfaction and job stress. According to this study, strong market driven countries are in the high stress group and European countries are in the high satisfaction group. The classification implies that market oriented managerial reforms are the main source of academic stress while the high social reputation of academics in their society and academic autonomy are the source of job satisfaction. Our regression analysis also shows that the new public management which is measured by the performance-based management in this study is the main source of academic job stress. In addition, this study highlighted the higher education systems that are classified as the high satisfaction and high stress group. These countries represent the conflicting nature of current academic society—on the one hand they are satisfied, but on the other they are highly stressful.  相似文献   

Internet Connectedness and its Social Origins: An Ecological Approach to Postaccess Digital Divides     

Joo-Young Jung 《Communication Studies》2013,64(4):322-339

This study examines the influence of sociocultural factors on the level of “Internet connectedness.” The Internet Connectedness Index (ICI), composed of five items, is modified and applied to measure disparities in the ways in which people use the Internet. With a dataset of 384 randomly selected telephone survey respondents, the ICI is regressed on various social indicators. The result indicates that technological environments, social environments, and the scope and intensity of Internet-related goals significantly influence individuals' Internet connectedness. This finding highlights that even after people gain access to the Internet, the ways they incorporate the Internet into their everyday lives differ, and that the differences reflect disparities in the multiple dimensions of the social context in which individuals are situated.  相似文献