Publication bias is a substantial problem for the credibility of research in general and of meta-
analyses in particular, as it yields overestimated effects and may suggest the existence of …

We review and evaluate selection methods, a prominent class of techniques first proposed
by Hedges (1984) that assess and adjust for publication bias in meta-analysis, via an …

Publication bias is a serious problem in systematic reviews and meta-analyses, which can
affect the validity and generalization of conclusions. Currently, approaches to dealing with …

Recent years have seen an increase in the number of researchers and practitioners
applying virtual reality (VR) to develop social skills, but varying levels of success have been …

Background Meta-analyses in the literature show that enhanced recovery after surgery
(ERAS) is associated with lower morbidity rate and shorter hospital stay after elective …

Background Hepatic metastases develop in approximately 50% of colorectal cancer (CRC)
cases. We performed a review and meta-analysis to evaluate survival after resection of CRC …

An adjusted rank correlation test is proposed as a technique for identifying publication bias
in a meta-analysis, and its operating characteristics are evaluated via simulations. The test …

We study recently developed nonparametric methods for estimating the number of missing
studies that might exist in a meta-analysis and the effect that these studies might have had …

Meta-analysis collects and synthesizes results from individual studies to estimate an overall
effect size. If published studies are chosen, say through a literature review, then an inherent …

The explanation and implementation of statistical methods for the medical researcher or
statistician remains an integral part of modern medical research. This book explains the use …