• Title, Summary, Keyword: 메타분석

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The Effects of Problem Solving Activities of STEAM Program on Middle School Students' Metacognition (STEAM 프로그램의 문제해결활동이 중학생의 메타인지에 미치는 영향)

  • Kang, Changik;Kang, Kyunghee
    • Journal of Science Education
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    • v.40 no.1
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    • pp.17-30
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    • 2016
  • The purpose of this study was to investigate the effects of problem solving activities of STEAM program on metacognition of middle school students. The subject was 63 middle school students. This study was designed single group pre-posttest. A single-group t-test was performed for analyzing difference between the pre-post test on metacognition. In the result of this study, there was significant difference between pretest and posttest on middle school students' metacognition. Also there was significant difference on metacognitive knowledge and metacognitive regulation. The analysis on the subelements of metacognition showed significant difference between pretest and posttest. The multiple regression analysis to investigate the relation of sub-elements of metacognition was performed in this study. The result of the analysis showed high explanatory power among metacognition subelements. This result suggests that the problem solving activities of STEAM program can have a positive effect in promoting metacognition. of the learner.

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Evidence-based Medicine and Systematic Review (근거중심의학과 체계적 고찰)

  • Kim, Soo Young
    • Quality Improvement in Health Care
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    • v.12 no.2
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    • pp.35-40
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    • 2006
  • 체계적 고찰은 명확히 정의된 문헌검색에 기반하고, 결정된 기준(criteria)을 이용하여 선택된 문헌의 질을 평가하며, 타당성이 입증된 방법으로 분석을 시행하는 리뷰의 한 형태이다. 체계적 고찰은 (1)답을 얻고자 하는 질문을 공식화 하고 이에 대한 프로토콜을 작성하고, (2)해당 질문에 대한 일차 연구를 찾아서 포함시키고 (3)자료의 질을 평가하고, (4)자료를 추출하여 뽑고, (5)자료를 분석하며, (6)결과를 해석하고 보고서를 작성하는 순서로 이루어진다 하지만 체계적 고찰 혹은 메타분석이 모든 문제에 대한 해결책은 아니다. 메타분석이 수행되었다고 하더라도 질이 나쁜 연구가 포함되거나 질 문제를 무시한 경우, 이질성에 대해 적절한 주의를 기울이지 못할 때, 무차별적인 자료 병합으로 결론이 정확하지 않은 경우, 출판 비뚤림, 시간 지체 비뚤림, 이중 출판 비뚤림, 언어 비뚤림, 결과 보고 비뚤림과 같은 보고 비뚤림이 문제가 되는 경우에는 메타분석 혹은 체계적 고찰이 잘못된 결론으로 도달하도록 할 수 있다. 따라서 올바른 방법론에 기초한 체계적 고찰만이 현존하는 모든 근거를 결합하여 올바른 결론으로 이끌 수 있다.

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Meta Analysis of the Correlation between early Childhood Teachers' Teaching Efficacy and their Job Satisfaction (유아교사의 교사효능감과 직무만족의 상관관계에 대한 메타분석)

  • Gong, Eun-Hwa
    • The Journal of the Korea Contents Association
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    • v.16 no.1
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    • pp.391-402
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    • 2016
  • The purpose of this study is to use meta-analysis as a research method to investigate the correlation between early child teachers' teaching efficacy and their job satisfaction, and thereby look into the effect size of the two variables and their sub-variables. To achieve the purpose, this researcher chose a total of 37 theses for analysis and collected 289 data for analyzing the effect size. Based on the data, CMA(Comprehensive Meta Analysis) 2.0 was applied. According to the analysis, the correlation between early childhood teachers' teaching efficacy and their job satisfaction was higher than the medium effect size on the basis of Cohen(1992) research. In the sub-variables of teaching efficacy, the correlation of personal teaching efficacy with job satisfaction showed higher effect size than that of general teaching efficacy. In the sub-variables of job satisfaction, the correlation between the belief in job and teaching efficacy showed the highest effect size. In terms of thesis type as a moderating variable, Ph.D dissertations showed higher effect size than journals or M.A. theses. As the result of the meta-analysis on publishing year and the number of samples, there was no statistical significance. On the basis of the analysis results, discussions and limitations of this study were suggested.

The Utilization of Metadata Elements and Content Designation for Improving Semantic Interoperability in Context of Digital Libraries (디지털 도서관의 의미적 상호운용성(Semantic Interoperability) 향상을 위한 메타데이터 요소와 활용에 관한 연구)

  • Chung, Eun-Kyung
    • Journal of the Korean Society for Library and Information Science
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    • v.42 no.1
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    • pp.193-211
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    • 2008
  • The purpose of this study is to examine semantic interoperability in terms of metadata elements and content designation in context of digital libraries. This study analyzed 78 digital libraries implemented using Greenstone application with respect to metadata elements and their content designation. Using crosswalks of digital libraries' metadata elements, and comparisons of content designation in elements. this study identifies three aspects which can impact semantic interoperability. First, there were less than 25% core metadata elements even within homogeneous information communities. Second, discrepancy exists between element names and their usage. Third, different levels were identified when assigning content to designated elements in terms of integrity and completeness.

A Study on Metadata for Using Construction Information (건설 정보 활용을 위한 메타데이터 연구)

  • Kim, Jin-Man;Hwang, Doo-Won;Song, Young-Woong;Choi, Yoon-Ki
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • pp.848-852
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    • 2007
  • Recently the domestic construction companies have been occurred to the various demand of information. Also information quantity is increasing. But using information have been stated in low why large information quantity. The other side, the various Metadata have been proposing in the many field for an effective search and an application. So the Metadata for using construction information must be built. In this study, we have founded information of construction companies, present condition of information, concept of Metadata and recent report. And we have presented the Metadata system model and building process of information system. We have analyzed the Metadata element of construction. This study is the foundation for the Metadata using system.

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The Effect of Internet Addiction Prevention Program on Adolescents' Self-regulation -A Systematic Review and Meta-analysis- (인터넷중독 예방프로그램이 청소년의 자기통제력에 미치는 효과 -체계적 문헌고찰 및 메타분석-)

  • Chung, Myung Sill;Seomun, GyeongAe
    • Journal of Digital Convergence
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    • v.17 no.8
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    • pp.347-355
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    • 2019
  • The purpose of this study was to investigate the effect of internet addiction prevention program on adolescents' self-regulation using systematic review and meta-analysis. Databases od domestic literature were used, Library of Congress, KERIS, KISS, domestic Journal, until 2018, eleven articles were used for meta-analysis. As a result of the study, there was statistically significant difference in the overall effect of self-regulation on the internet addiction prevention program, but the heterogeneity was high and subgroup analysis was conducted. The effects of self-regulation on the Internet addiction prevention program according to subjects were statistically significant in both elementary and middle & high school students. The effect size of self-regulation by internet addiction was statistically significant..Therefore, it's necessary to develop an Internet addiction prevention program according to the characteristics of elementary and middle & high school students.

A Meta-analysis on the Behavioral Intention for Information Technology in Korea (우리나라 정보기술의 행위의도에 관한 메타분석)

  • Nam, Soo-Tai;Kim, Do-Goan;Lee, Hyun-Chang;Shin, Seong-Yoon;Jin, Chan-Yong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.17 no.11
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    • pp.2581-2587
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    • 2013
  • A Meta-analysis is a statistical literature synthesis method that provides the opportunity to view the research context by combining and analyzing the quantitative results of many empirical studies. We conducted a Meta-analysis research on the behavioral intention of information technology based on the theory of planned behavior. This study was targeted a total of 36 research papers that are setting up the causal relationship in the theory of planned behavior among the research papers published in domestic academic journals before 2013. The result of the Meta-analysis, showed that the effect size was 0.571 in the path from attitude toward behavior to behavioral intention, it showed that the effect size was 0.381 in the path from subjective norm to behavioral intention. And, it showed that the effect size was 0.481 in the path from perceived behavioral control to behavioral Intention. Also, it showed that the effect size was 0.421 in the path from behavioral Intention to behavior.

A Meta-analysis of Relationship among Satisfaction, Trust, and Loyalty in E-commerce (전자상거래 연구에서 만족, 신뢰 그리고 충성도 간에 관계에 관한 메타분석)

  • Nam, Soo-Tai;Yang, Ki-Seol;Jin, Chan-Yong
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.19 no.7
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    • pp.1711-1718
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    • 2015
  • A Meta-analysis refers to a statistical literature synthesis method from the quantitative results of many known empirical studies. Recently, the convergence of knowledge-based society and, information telecommunication technologies has a rapid impact on politics, economics and various fields. A meta-analysis was conducted to identify the relationships among satisfaction, trust, and loyalty in e-commerce studies. A total of 57 research papers published in Korean academic journals during 2002 and 2013 were reviewed and the causal relationships among satisfaction, trust, and loyalty in e-commerce were established. The result of the meta-analysis might be summarized that the highest effect size (r =. 591) was in the path from the satisfaction to the trust. The second biggest effect size (r =. 554) was found in the path between the satisfaction to the loyalty. The third biggest effect size (r =. 552) was found in the path between the trust to the loyalty. By the way, the smallest effect size (r =. 484) was found in the path between the trust to the satisfaction.

A Meta-Analysis of the Effects of Aromatherapy Hand Massge (아로마테라피 손마사지 효과에 대한 메타분석)

  • Park, Yeon-Suk
    • Journal of Digital Convergence
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    • v.13 no.1
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    • pp.469-479
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    • 2015
  • Purpose: The purpose of this study is to explore the effect of nursing intervention of aromatherapy hand massage. Method: In order to conduct a meta-analysis, a total of 124 studies were retrieved. From these studies, fifteen studies met the inclusion criteria with a total of 733 participants. And these studies published from January 2004 to July 2013 were included in the journal articles published in Korea. Results: In fifteen studies, Random effect model for the aromatherapy hand massage that 95% confidence level, significant level of p-valve on less than 0.001. Standardized Mean Difference reported systolic blood pressure(d=-9.5320), diastolic pressure(d=-8.8730), pulse(d=-9.1241), anxiety(d=-0.1469), and depression(d=-0.4489) All measurement variables were significantly decreased in the negative direction. Conclusion: This study suggests that aromatherapy hand massage can reduce the level of blood pressure(systolic, diastolic), pulse, anxiety and depression.

A Meta-Analysis on the Solution Focused Group Program Effects for Elementary School Children (초등학생을 위한 해결중심 집단상담프로그램의 효과에 관한 메타분석)

  • Park, Jung-Im
    • The Journal of the Korea Contents Association
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    • v.14 no.11
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    • pp.476-485
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    • 2014
  • This study was to examine the effectiveness of the Solution Focused Group Counseling Program for elementary school students by meta-analysis. For the purpose of the study, master's theses, doctoral dissertations, and journal articles published in Korea up to May, 2014 were systematically reviewed. As a result, a total of 20 studies were eligible for the inclusion criteria. The mean effect sizes and test for homogeneity of effect size (Q-statistic) were analyzed by using Comprehensive Meta-Analysis software 2.0. The main findings of the study were as follows: First, the average effect sizes for Solution Focused Group Counseling Program were ES=1.61 in self-esteem, ES=1.35 in school adjustment capacity, ES=1.07 in interpersonal relationship and ES=1.03 in self-efficacy, Second, the statistically significant moderate variables of the effect size for the Solution Focused Group Counseling Program were 'sessions' of self-esteem and 'sessions', 'running times' in school adjustment capacity. Based on the study results, the research and practice implications were discussed.