Secondary research typically includes which of the following?

Secondary research involves the collection and analysis of data that has already been gathered by other sources, as opposed to primary research, which involves the direct collection of new data. Data tracking conducted by major companies falls under this category because it involves accessing existing datasets that organizations compile for various purposes, such as market analysis or consumer behavior insights. This type of research often leverages previously conducted studies, industry reports, statistical data, and even business analytics, all of which are examples of secondary data.

In contrast, live interviews and surveys, personal observations from field research, and experimental studies are classified as primary research methods. These approaches involve the researcher actively gathering new data through direct interaction with subjects or participants. As a result, they do not fit into the secondary research category.