Ads
related to: meta analysis research examples paper
Search results
Results From The WOW.Com Content Network
Meta-analysis is a method of synthesis of quantitative data from multiple independent studies addressing a common research question. An important part of this method involves computing a combined effect size across all of the studies.
The aim of the PRISMA statement is to help authors improve the reporting of systematic reviews and meta-analyses. [3] PRISMA has mainly focused on systematic reviews and meta-analysis of randomized trials, but it can also be used as a basis for reporting reviews of other types of research (e.g., diagnostic studies, observational studies).
The social science research community was concerned that the condemnation by government legislatures might have a chilling effect on the future publication of controversial research results. The study's lead author is the psychologist Bruce Rind; it expanded on a 1997 meta-analysis for which Rind is also the lead author. [2]
In 1966, an early meta-research paper examined the statistical methods of 295 papers published in ten high-profile medical journals. [3] It found that "in almost 73% of the reports read ... conclusions were drawn when the justification for these conclusions was invalid." Meta-research in the following decades found many methodological flaws ...
A meta-analysis lends itself more to statistical research, often converting the original research into one common metric referred to as "effect sizes", so as to easily identify patterns and anomalies among publications. Systematic reviews may include meta-analysis results. [6]
An example forest plot of five odds ratios (squares, proportional to weights used in meta-analysis), with the summary measure (centre line of diamond) and associated confidence intervals (lateral tips of diamond), and solid vertical line of no effect. Names of (fictional) studies are shown on the left, odds ratios and confidence intervals on ...
Funnel plot of a meta-analysis of stereotype threat on girls' math scores showing asymmetry typical of publication bias. From Flore, P. C., & Wicherts, J. M. (2015) [17] There is extensive meta-research on publication bias in the biomedical field. Investigators following clinical trials from the submission of their protocols to ethics ...
In an IPD meta-analysis, patient-level data from multiple studies or settings are combined to address a certain research question. IPD meta-analyses tend to be common for large-scale and international projects, and they are less limited than aggregate data (AD) meta-analyses in terms of the availability and quality of data they can use. [2]