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Meta-analysis leads to a shift of emphasis from single studies to multiple studies. It emphasizes the practical importance of the effect size instead of the statistical significance of individual studies. This shift in thinking has been termed "meta-analytic thinking". The results of a meta-analysis are often shown in a forest plot.
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 ...
Metapsychology (Greek: meta 'beyond, transcending', and ψυχολογία 'psychology') [2] is that aspect of a psychological theory that discusses the terms that are essential to it, but leaves aside or transcends the phenomena that the theory deals with.
In medical research, an umbrella review is a review of systematic reviews or meta-analyses. [1] [2] [3] They may also be called overviews of reviews, reviews of reviews, summaries of systematic reviews, or syntheses of reviews. [1] Umbrella reviews are among the highest levels of evidence currently available in medicine. [2]
Gene V Glass (born June 19, 1940) is an American statistician and researcher working in educational psychology and the social sciences.According to the science writer Morton Hunt, he coined the term "meta-analysis" and illustrated its first use in his presidential address to the American Educational Research Association in San Francisco in April, 1976.
A meta-regression can be classified in the same way—meta-regression and network meta-regression—depending on the number of distinct treatments in the regression analysis. Meta-analysis (and meta-regression) is often placed at the top of the evidence hierarchy provided that the analysis consists of individual participant data of randomized ...
Multiverse analysis is a scientific method that specifies and then runs a set of plausible alternative models or statistical tests for a single hypothesis. [1] It is a method to address the issue that the "scientific process confronts researchers with a multiplicity of seemingly minor, yet nontrivial, decision points, each of which may introduce variability in research outcomes". [2]
The Journal of Individual Psychology; Journal of Mind and Behavior; Journal of Nervous and Mental Disease; Journal of Neuropsychology; Journal of Nonverbal Behavior; Journal of Occupational and Organizational Psychology; Journal of Occupational Health Psychology; Journal of Personality and Social Psychology; The Journal of Positive Psychology ...