What type of research involves collecting data firsthand by the researcher?

Primary research is characterized by the collection of data directly from original sources by the researcher. This involves methods such as surveys, interviews, focus groups, and observations where the researcher gathers new information that has not been previously published or analyzed. The primary objective is to obtain specific insights directly relevant to the research question at hand, enabling the researcher to gain a deeper understanding of the subject matter.

In contrast, secondary research involves the use of existing data that has been collected by others, such as reports, studies, or articles. Tertiary research refers to the consolidation and summary of existing information, often found in encyclopedias or textbooks. Corporate research typically pertains to studies conducted by businesses or organizations regarding their own operations or markets, but it doesn’t specifically define the method of data collection like primary research does. Thus, primary research is the correct choice because it emphasizes the original gathering of data specifically by the researcher for their study.