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Primary sources are also sets of data, such as health statistics, which have been tabulated, but not interpreted. 1  Journals or Periodicals: main type of publication in which scientific research is reported. 2  May be published by learned societies or by commercial publishers. 3  A researcher(s) submits an article to a journal.
If you ever received a call to participate in a survey, you were part of primary data collection. In this lesson, you'll learn what primary data is, sources of primary data and collection of it. A short quiz follows. Primary data is information that you collect specifically for the purpose of your research project. An advantage of primary data is that it is specifically tailored to your research needs. A disadvantage is that it is expensive to obtain. The source of your primary data is the population sample from which you collect the data.