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A primary source can have all of these qualities, and a secondary source may have none of them. Deciding whether primary, secondary or tertiary sources are appropriate on any given occasion is a matter of good editorial judgment and common sense, not merely mindless, knee-jerk reactions to classification of a source as "primary" or "secondary".
Secondary data refers to data that is collected by someone other than the primary user. [1] Common sources of secondary data for social science include censuses, information collected by government departments, organizational records and data that was originally collected for other research purposes. [2] Primary data, by contrast, are collected ...
Scipione Amati's History of the Kingdom of Woxu (1615), an example of a secondary source. In scholarship, a secondary source [1] [2] is a document or recording that relates or discusses information originally presented elsewhere. A secondary source contrasts with a primary, or original, source of the information being discussed. A primary ...
Secondary sources may draw on primary sources and other secondary sources to create a general overview; or to make analytic or synthetic claims. [3] [4] Tertiary sources are publications such as encyclopedias or other compendia that sum up secondary and primary sources. For example, Wikipedia itself is a tertiary source.
A tertiary source is an index or textual consolidation of already published primary and secondary sources [1] that does not provide additional interpretations or analysis of the sources. [ 2 ] [ 3 ] Some tertiary sources can be used as an aid to find key (seminal) sources, key terms, general common knowledge [ 4 ] and established mainstream ...
Secondary sources are written accounts of history based upon the evidence from primary sources. These are sources which, usually, are accounts, works, or research that analyze, assimilate, evaluate, interpret, and/or synthesize primary sources. These are not as authoritative and are supplemental documents concerning the subject under consideration.
A primary source, such as a report of a pivotal experiment cited as evidence for a hypothesis, may be a valuable component of an article. A good article may appropriately cite primary, secondary, and tertiary sources. Use of primary sources should always conform to the No original research policy.
Whether a source is primary, secondary or tertiary can depend on the topic that an article is covering. For example, the summary for policy makers from the IPCC is a secondary source for the article Global warming but it would be a primary source if used for the article Intergovernmental Panel on Climate Change.