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The initial publication of data from a scientific experiment, such as a clinical trial, is a primary source. In science, data is primary, and the first publication of any idea or experimental result is always a primary source.
In scientific literature, a primary source, or the "primary literature", is the original publication of a scientist's new data, results, and theories. [8] In political history , primary sources are documents such as official reports, speeches, pamphlets, posters, or letters by participants, official election returns, and eyewitness accounts.
Gathering data can be accomplished through a primary source (the researcher is the first person to obtain the data) or a secondary source (the researcher obtains the data that has already been collected by other sources, such as data disseminated in a scientific journal).
A New York Times opinion piece may include secondary-source material, quoting from a government report, and primary-source material, the columnist's opinions regarding what the report means for the economy. The opinion piece itself is a primary source regarding the columnist's opinion, but a secondary source regarding predictions for the economy.
In the case of Plutarch and similar classical material, I will quote one important sentence from that article: "In some instances, the reason for identifying a text as the "primary source" may devolve from the fact that no copy of the original source material exists, or that it is the oldest extant source for the information cited.
Primary, or "statistical" sources are data that are collected primarily for creating official statistics, and include statistical surveys and censuses. Secondary, or "non-statistical" sources, are data that have been primarily collected for some other purpose (administrative data, private sector data etc.).
For the purposes of Wikipedia policies and guidelines, primary, secondary and tertiary sources are defined as follows: [1] [2] Primary sources are very close to an event, often accounts written by people who are directly involved, offering an insider's view of an event, a period of history, a work of art, a political decision, and so on.
Sources of information are commonly categorized as primary, secondary, or tertiary sources.In brief, a primary source is one close to the event with firsthand knowledge (for example, an eyewitness); a secondary source is at least one step removed (for example, a book about an event written by someone not involved in it); and a tertiary source is an encyclopaedia or textbook that provides a ...