Results 31 to 40 of about 25,305,187 (391)
British medical journal, 2015 Protocols of systematic reviews and meta-analyses allow for planning and documentation of review methods, act as a guard against arbitrary decision making during review conduct, enable readers to assess for the presence of selective reporting against ...
Larissa Shamseer +7 more
semanticscholar +1 more source
Obesity and Mortality Among Patients Diagnosed With COVID-19: A Systematic Review and Meta-Analysis
Frontiers in Medicine, 2021 Coronavirus disease 2019 (COVID-19) has already raised serious concern globally as the number of confirmed or suspected cases have increased rapidly. Epidemiological studies reported that obesity is associated with a higher rate of mortality in patients ...
Tahmina Nasrin Poly +20 more
doaj +1 more source
Meta-analyses in psychology often overestimate evidence for and size of effects
Royal Society Open Science, 2023 Adjusting for publication bias is essential when drawing meta-analytic inferences. However, most methods that adjust for publication bias do not perform well across a range of research conditions, such as the degree of heterogeneity in effect sizes ...
František Bartoš +5 more
doaj +1 more source
Statistical Methods for the meta-analysis paper by Itzhaky et al [PDF]
arXiv, 2021 This document describes the statistical methods used in Itzhaky et al ("Systematic Review and Meta-analysis: Twenty-six Years of Randomized Clinical Trials of Psychosocial Interventions to Reduce Suicide Risk in Adolescents"). That paper is a meta-analysis of randomized controlled clinical trials testing methods for preventing suicidal behavior and/or ...
arxiv
Karl Pearson's meta-analysis revisited [PDF]
, 2009 This paper revisits a meta-analysis method proposed by Pearson [Biometrika 26 (1934) 425--442] and first used by David [Biometrika 26 (1934) 1--11]. It was thought to be inadmissible for over fifty years, dating back to a paper of Birnbaum [J.
Owen, Art B.
core +2 more sources
Ibrain, 2021 Meta‐analysis has been recognized as the best means to evaluate objectively and study the evidence for a particular issue. In order to give researchers a better understanding of the Meta process, we present an overall introduction to Meta‐analysis in ...
Xu Fang, Nan Zhao, Zhao‐Qiong Zhu
doaj +1 more source
How to combine research studies [PDF]
, 2020 Dealing with imperfect information All marketing research studies are subject to sampling errors. After all, even if we use a reasonably large sample size of 1,000, our margin of error is ±3% or a spread of 6 percentage points.
Chuck Chakrapani, Meta Analysis
core
Meta-analysis and systematic review of skin graft donor-site dressings with future guidelines. [PDF]
, 2018 Background: Many types of split-thickness skin graft (STSG) donor-site dressings are available with little consensus from the literature on the optimal dressing type. The purpose of this systematic review was to analyze the most recent outcomes regarding
Alwaal +58 more
core +1 more source
META – ANALYSIS FOR AGRICULTURAL RESEARCHES (REVIEW) [PDF]
Mesopotamia Journal of Agriculture, 2020 This article aimed to discuss the Meta- analysis and its use in agricultural research. This analysis carefully reviews the results that have already been published; it works on organizing, integrating and scientific evaluation of previous researches and ...
Eskander H. alqysy +2 more
doaj +1 more source
Estimates of heterogeneity (I2) can be biased in small meta-analyses [PDF]
, 2014 In meta-analysis, the fraction of variance that is due to heterogeneity is known as I2. We show that the usual estimator of I2 is biased. The bias is largest when a meta-analysis has few studies and little heterogeneity.
von Hippel, Paul T.
core +2 more sources