meta-analysis

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meta-analysis

 [met″ah-ah-nal´ĭ-sis]
any systematic method that uses statistical analysis to integrate the data from a number of independent studies.

meta-analysis

/meta-anal·y·sis/ (met″ah-ah-nal´ĭ-sis) a systematic method that takes data from a number of independent studies and integrates them using statistical analysis.

meta-analysis

a systematic method of evaluating statistical data based on results of several independent studies of the same problem.

meta analysis

A method that uses statistical techniques to combine results from different studies and obtain a quantitative estimate of the overall effect of a particular intervention or variable on a defined outcome—i.e., it is a statistical process for pooling data from many clinical trials to glean a clear answer. Meta-analysis produces a stronger conclusion than can be provided by any individual study.

Cons
Bias, potential for analytical sloppiness, lack of understanding of basic issues, failure to consider major covariates, and overstating the strengths and precision of the results.

meta-analysis

Data synthesis, quantitative overview Data analysis A systematic method that uses statistical techniques for combining results from different studies to obtain a quantitative estimate of the overall effect of a particular intervention or variable on a defined outcome; MA produces a stronger conclusion than can be provided by any individual study. See Cochran Collaboration, Cumulative meta-analysis.

meta-analysis

An attempt to improve the reliability of the findings of medical research by combining and analyzing the results of all discoverable trials on the same subject. In crude terms the advantages are obvious: trials that find against a hypothesis will cancel out the effect of those that find for it. Pooling of raw data is not, however, without statistical hazard and it has become apparent that meta-analysis can introduce its own sources of inaccuracy. The method is currently undergoing refinement.

meta-analysis

post-hoc statistical or trends analysis of data; i.e. analyisis of aggregated data from disparate experiments with similar research protocols
References in periodicals archive ?
The present analysis is the first comprehensive metastudy of CVJ undertaken and is focused on the years 1990 to 2009.
The most thorough and authoritative recent metastudy surveying multiple individual corn ethanol lifecycle analyses was judged to be Murphy et al.
Systematic reviews of bladder training and voiding programmes in adults: a synopsis of findings from data analysis and outcomes using metastudy techniques.
Our goal in conducting this metastudy was not to evaluate or judge the quality of JHCEAD articles.
Several other ACA-published journals have published metastudy analyses during the past few years, including the Journal of Counseling & Development (JCD; Erford, Miller, et al.
3 based on 1997-2002 data from the metastudy of Lewandowski and Hochstotter (31) and 2005 data from Lorigo et al.
11) For a metastudy on the diverse and fluid caring practices in Indigenous families and same sex families, see A.
The validity of the assumption was also questionable for a metastudy of the effects of soil properties on Cd behaviour (Sauve et al.
The most recent metastudy, far more comprehensive than the EPA's own analysis, finds that most studies produce VSLs ranging from $3.
A metastudy by the Cleveland Clinic published in the Journal of the American Medical Association analyzed data from two major studies funded by the drug companies and two smaller ones--all for cardiovascular risks.
The metastudy reported in this paper compares two theoretical proposals for the distribution of species abundance in natural settings.
He explains in the section on analysis (four fifths of the way through the book) what it is that he is attempting to do in the book in terms of a metastudy of musical analysis.