The presence of publication bias can be explored by drawing a funnel plot in which the estimate of the reported effect size is plotted against the inverse of the square of the standard error. Because an inevitable degree of subjectivity exists in the interpretation of funnel plots, statistical ...
以及是否存在出版偏倚（Publication bias）和漏斗图偏倚（Funnel plot bias）。如果漏斗图呈现对称分布，可...
Fig. 5.Funnel plot of the meta-analysis on memory accuracy (hollow and solid circles represent the observed and imputed effect sizes, respectively). To statistically test the publication bias, two techniques were utilized. The funnel-plot-based trim and fill technique (Duval & Tweedie, 2000) sh...
However, visual inspections of funnel plots can be subjective, wherefore we have used the test of Egger et al. (1997) to determine the existence of publication bias. This test allows to contrast the existence of asymmetry in the funnel plot. Given that we do not have the standard errors of...
Funnel plot for publication bias in selection of studies on the TPA -7351C/T polymorphism and ischemic stroke (TT vs CT+CC). X Sun,L Rong,J Li,... 被引量: 0发表: 2013年 The appropriateness of asymmetry tests for publication bias in meta-analyses: a large survey Background: ...
standardized mean differencePublication bias and other forms of outcome reporting bias are critical threats to the validity of findings from research syntheses. A variety of methods have been proposed for detecting selective outcome reporting in a collection of effect size estimates, including several ...
钁 # Study on Effectiveness of Funnel Plot Used in Detecting Publication BiasUsed, Funnel Plot
The funnel plot is widely used in meta-analysis to detect small study effects, especially publication bias. However, it has been repeatedly shown that the interpretation of funnel plots is highly subjective and often leads to false conclusions regarding t...
Correcting for this bias is not possible without making untestable assumptions. In this paper, a sensitivity analysis is suggested which is based on fitting a model to the funnel plot. Some examples are discussed.关键词: Funnel plots Meta-analysis Selectivity bias Sensitivity analysis ...
Trim and fill: A simple funnel-plot-based method of testing and adjusting for publication bias in meta-analysis. Summary. We study recently developed nonparametric methods for estimating the number of missing studies that might exist in a meta-analysis and the effect... S Duval,R Tweedie - ...