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메타분석에 있어서 출간오류 : 의미와 분석
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  • 메타분석에 있어서 출간오류 : 의미와 분석
  • Publication Bias in Meta-Analysis: Its Meaning and Analysis
ㆍ 저자명
황성동
ㆍ 간행물명
인간발달연구KCI
ㆍ 권/호정보
2016년|23권 1호(통권65호)|pp.1-19 (19 pages)
ㆍ 발행정보
한국인간발달학회|한국
ㆍ 파일정보
정기간행물|KOR|
PDF텍스트(1.35MB)
ㆍ 주제분야
사회과학
서지반출

국문초록

선행 연구결과에 대한 종합적 분석(research synthesis) 방법으로서 메타분석(meta-analysis)은 최 근 많은 관심을 받고 있으며, 기존의 연구방법에 비해 오류(bias)가 적은 결과를 도출하는 것 으로 알려져 있다. 하지만 연구자들은 메타분석 연구가 출간오류로 인해 그 결과가 왜곡될 수 있다는 의구심을 가지고 있다. 따라서 본 연구는 메타분석에 있어서 중요한 이슈인 출간 오류의 의미를 논의하고 구체적인 사례를 이용해 출간오류 분석을 실시하여 메타분석 연구 를 수행하는데 필요한 출간오류 분석 가이드라인을 제공하고자 하였다. 출간오류에 대한 구체적인 분석으로 먼저 효과크기 데이터에 대한 검토를 거쳐, funnel plot을 이용하여 효 과크기의 비대칭을 검증하였다. 여기에는 시각적 분석과 통계적 분석방법을 이용하였으 며, 그 결과 출간오류의 존재를 파악할 수 있었다. 따라서 출간오류에 대한 조정방법으로 trim-and-fill 방법과 Copas selection 모형을 활용하여 연구결과에 대한 조정을 시도하였으며, 그 결과 발견된 출간오류는 전체 연구결과에 심각한 영향을 줄 정도의 오류가 아님을 확인 할 수 있었다. 학계에서는 메타분석에 대한 결과를 보고하는 가이드라인과 메타분석 연구의 평가기준에 있어서 출간오류 분석에 대한 기준을 명시하고 있다. 따라서 출간오류 분석은 개별 메타분석 연구의 진실성(integrity) 검증뿐만 아니라 메타분석이라는 연구방법의 타당성 (validity)을 위한 기준이 된다고 할 수 있다.

영문초록

As a new mode of research synthesis, meta-analysis has recently drawn much attention from researchers, having proved to produce less biased results than the traditional research synthesis method. However, scholars may be suspicious about the results of meta-analysis due to publication bias as it occurs when published studies represent a biased selection of the evidence. This study was designed to discuss the meaning of publication bias and conduct publication bias analysis using an example data set so as to provide researchers with a guideline for performing valid meta-analysis. The process of publication bias analysis begins with a careful examination of the effect sizes of individual studies and continues with testing funnel plot asymmetry. With both a graphical test and a statistical one, potential publication bias could not be ruled out. To deal with this bias, adjustments were made using the trim-and-fill method followed by the Copas selection model, and the original result was found to be valid and statistically robust even with the small bias detected. In the academic circle of meta-analysis, publication bias analysis is specified as one of the required items in some guidelines of reporting and evaluating the results of meta-analysis. Therefore, it is highly recommended to conduct publication bias analysis for the validity of meta-analysis as well as the integrity of individual meta-analytic studies.

목차

Ⅰ. 서 론
Ⅱ. 출간오류의 의미와 분석
Ⅲ. 결 론
참고문헌

키워드

메타분석출간오류출간오류 분석효과크기진실성meta-analysispublication biaseffect sizespublication bias analysisintegrity

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