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The best evidence for efficacy of treatments and other health interventions comes mainly from meta-analyses of randomized controlled trials (RCTs). [9] Systematic reviews of literature that include non-randomized studies are less reliable. [10] Narrative reviews can help establish the context of evidence quality.
How accepted and high-quality reliable sources use a given source provides evidence, positive or negative, for its reliability and reputation. The more widespread and consistent this use is, the stronger the evidence.
Editors should be careful to avoid engaging in original research, but the quality of available evidence should be kept in mind when assessing whether a particular idea or viewpoint is well-accepted by the relevant academic community. Such evidence should include reviews of the literature including the work of several different research groups.
Base articles on reliable, independent, published sources with a reputation for fact-checking and accuracy. Source material must be published, on Wikipedia meaning made available to the public in some form. [f] Unpublished material is not considered reliable. Use sources that directly support the material presented in an article and are ...
A reliable source is one that presents a well-reasoned theory or argument supported by strong evidence. Reliable sources include scholarly, peer-reviewed articles or books written by researchers for students and researchers, which can be found in academic databases and search engines like JSTOR and Google Scholar .
Such evidence is expected to be empirical evidence and interpretable in accordance with the scientific method. Standards for scientific evidence vary according to the field of inquiry, but the strength of scientific evidence is generally based on the results of statistical analysis and the strength of scientific controls. [citation needed]
A systematic review is a scholarly synthesis of the evidence on a clearly presented topic using critical methods to identify, define and assess research on the topic. [1] A systematic review extracts and interprets data from published studies on the topic (in the scientific literature), then analyzes, describes, critically appraises and summarizes interpretations into a refined evidence-based ...
As Wikipedia is a work in progress, it makes no guarantee of validity. Even a featured article that has recently appeared on the main page may contain vandalism. If you need to rely on a piece of information, the only way to do so with confidence is to check the cited source and confirm that it both matches what is in the article and is reliable.