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  2. Secondary source - Wikipedia

    en.wikipedia.org/wiki/Secondary_source

    A secondary source is one that gives information about a primary source. In a secondary source, the original information is selected, modified and arranged in a suitable format. Secondary sources involve generalization, analysis, interpretation, or evaluation of the original information. The most accurate classification for any given source is ...

  3. Wikipedia : Primary Secondary and Tertiary Sources

    en.wikipedia.org/wiki/Wikipedia:Primary...

    Secondary sources are accounts at least one step removed from an event or body of primary-source material and may include an interpretation, analysis, or synthetic claims about the subject. [2] 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]

  4. Wikipedia:Identifying and using primary sources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Identifying_and...

    A secondary source usually provides analysis, commentary, evaluation, context, and interpretation. It is this act of going beyond simple description, and telling us the meaning behind the simple facts, that makes them valuable to Wikipedia. Reputable secondary sources are usually based on more than one primary source.

  5. Secondary data - Wikipedia

    en.wikipedia.org/wiki/Secondary_data

    Secondary data. 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]

  6. Secondary research - Wikipedia

    en.wikipedia.org/wiki/Secondary_research

    Secondary market research can be broken up into two categories: information from internal sources such as an agency or company, and information from external sources held outside an organization or agency. [6] Secondary market research uses information from the past, reuses data already collected, and is more economical.

  7. Historical source - Wikipedia

    en.wikipedia.org/wiki/Historical_source

    A tertiary source is an index or textual consolidation of already published primary and secondary sources [6] that does not provide additional interpretations or analysis of the sources. [7] [8] Some tertiary sources can be used as an aid to find key (seminal) sources, key terms, general common knowledge [9] and established mainstream science on a

  8. Wikipedia:Evaluating sources - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Evaluating_sources

    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 ...

  9. Scientific literature - Wikipedia

    en.wikipedia.org/wiki/Scientific_literature

    Secondary sources comprise review articles that summarize the results of published studies to underscore progress and new research directions, as well as books that tackle extensive projects or comprehensive arguments, including article compilations. Tertiary sources encompass encyclopedias and similar works designed for widespread public ...