Data collected by someone other than the user.

• A. Secondary data
• B. Primary data
• C. Physiological factor data
• D. Qualitative data

Answer: (A)

Data collected by someone else is secondary data. It means you didn’t gather the information yourself; you’re using data that already exists from another source, such as published reports, datasets, or records. This contrasts with primary data, which you collect firsthand for your own project or study. The other options don’t fit the focus on who collected the data: qualitative data describes the type of information (descriptive, non-numeric) rather than who collected it, and physiological factor data refers to what is being measured rather than who gathered it. Secondary data is useful for saving time and resources, though you should evaluate its relevance and reliability for your purposes.