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The term grey literature acts as a collective noun to refer to a large number of publications types produced by organizations for various reasons. These include research and project reports, annual or activity reports, theses, conference proceedings, preprints, working papers, newsletters, technical reports, recommendations and technical standards, patents, technical notes, data and statistics ...
John Ioannidis argues that "claimed research findings may often be simply accurate measures of the prevailing bias." [46] He lists the following factors as those that make a paper with a positive result more likely to enter the literature and suppress negative-result papers: The studies conducted in a field have small sample sizes.
This encompasses literature that has not been peer reviewed or published in an academic journal. [1] Working papers may be disseminated for the purpose of receiving feedback to improve the publication. [2] They are often the basis for related works, and may in themselves be cited by peer-review papers. They may be considered as grey literature.
Research design refers to the overall strategy utilized to answer research questions. A research design typically outlines the theories and models underlying a project; the research question(s) of a project; a strategy for gathering data and information; and a strategy for producing answers from the data. [ 1 ]
Technical reports, for minor research results and engineering and design work (including computer software), round out the primary literature. Secondary sources in the sciences include articles in review journals (which provide a synthesis of research articles on a topic to highlight advances and new lines of research), and books for large ...
Questionable research practices uncover a large grey area of problematic practices, which are frequently associated to deficiencies in research transparency. In 2016, a study identified as much as 34 questionable research practices or "degree of freedom", that can occur at all the steps of the project (the initial hypothesis, the design of the ...
The PRISMA flow diagram, depicting the flow of information through the different phases of a systematic review. PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) is an evidence-based minimum set of items aimed at helping scientific authors to report a wide array of systematic reviews and meta-analyses, primarily used to assess the benefits and harms of a health care ...
Books, technical reports, pamphlets, and working papers issued by individual researchers or research organizations on their own initiative; these are sometimes organized into a series. Literature may also be published in areas considered to be "grey", as they are published outside of traditional channels. [1]