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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.
In science, data is primary, and the first publication of any idea or experimental result is always a primary source. These publications, which may be in peer-reviewed journal articles or in some other form, are often called the primary literature to differentiate them from unpublished sources.
Raw data (sometimes colloquially called "sources" data or "eggy" data, the latter a reference to the data being "uncooked", that is, "unprocessed", like a raw egg) are the data input to processing. A distinction is made between data and information, to the effect that information is the end product of data processing. Raw data that has ...
For most people, government census reports are treated as a primary source. But to a historian, the primary data from a census are the questionnaires or the primary recordings of the survey data in registers, or the equivalents, and the census report itself is a secondary source reflecting the published analysis, synthesis and reporting of the ...
The researcher will use these reports as primary sources because they offer direct or firsthand evidence of the events, as they first took place." "There can be grey areas when determining if an item is a primary source or a secondary source. For example, newspaper journalists may interview eyewitnesses but not be actual eyewitnesses themselves.
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 ...
HuffPost Data Visualization, analysis, interactive maps and real-time graphics. Browse, copy and fork our open-source software.; Remix thousands of aggregated polling results.
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.).