Primary data is defined as:

Primary data refers to information that is specifically collected to address a particular research question or for a specific analysis. This type of data is original and has been gathered directly by the researcher or investigator through methods such as surveys, interviews, observations, and experiments. The focus on a specific analysis means that the data collected is tailored to meet the objectives of that study, ensuring relevance and authenticity in relation to the research topic.

In contrast, data collected for various research purposes can include both primary and secondary data. Data compiled over several years might reflect historical information, but it does not emphasize the targeted nature of primary data collection. Lastly, the assertion that primary data cannot be digitalized is inaccurate; in fact, primary data can often be collected and stored in digital formats, allowing for more efficient analysis and access. Thus, the defining characteristic of primary data is its intentional collection for a specific analytical purpose.