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Primary research involves the collection of original primary data. It is often undertaken after researchers have gained some insight into an issue by reviewing secondary research or by analyzing previously collected primary data.[clarification needed] It can be accomplished through various methods, including questionnaires and telephone interviews in market research, or experiments and direct observations in the physical sciences, among others.
- Driscoll, Dana Lynn; Brizee, Allen. "What is Primary Research and How do I get Started?". Purdue OWL. Purdue University. Retrieved March 8, 2017.