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Secondary research involves the summary, collation and/or synthesis of existing research. Secondary research is contrasted with primary research in that primary research involves the generation of data, whereas secondary research uses primary research sources as a source of data for analysis. [ 1 ]
Secondary data generally have a pre-established degree of validity and reliability which need not be re-examined by the researcher who is re-using such data. Secondary data is key in the concept of data enrichment, which is where datasets from secondary sources are connected to a research dataset to improve its precision by adding key ...
The system also comprises institutions such as libraries, research institutes, and publishers.) [15] Some modern languages use more than one word for the English word "source". German usually uses Sekundärliteratur ("secondary literature") for secondary sources regarding historical facts, leaving Sekundärquelle ("secondary source") to ...
Among genealogists, a primary source comes from a direct witness, a secondary source comes from second-hand information or hearsay told to others by witnesses, and tertiary sources can represent either a further link in the chain or an analysis, summary, or distillation of primary and/or secondary sources. In this system, an elderly woman's ...
Research that consists of collecting and organizing material from existing sources is encouraged: this is "source-based research," and it is fundamental to writing an encyclopedia. Problems often arise, however, when editors use sources in ways that constitute original research, or which violate Wikipedia's policy of neutrality.
Care must be taken to avoid original research by editors, to avoid giving undue weight to particular observations, views or experiences, and to establish the notability of topics covered by Wikipedia. Wikipedia articles should rely on published secondary sources and, to a lesser extent, on tertiary sources. In theory, primary sources may also ...
[f] For example, a review article that analyzes research papers in a field is a secondary source for the research. [g] Whether a source is primary or secondary depends on context. A book by a military historian about the Second World War might be a secondary source about the war, but where it includes details of the author's own war experiences ...
The use of primary sources may easily lead to syntheses that constitute original research. Editors should not use public records as a source about a subject — such as birth certificates, home evaluations, traffic citations, vehicle registrations, or trial transcripts — unless these have been used by a reliable, secondary source.