Secondary data is data collected by someone else. Which option correctly describes this?

Secondary data is data collected by someone else. Which option correctly describes this?

• A. Data you personally collected
• B. Data collected by someone else
• C. Data from experiments you conduct
• D. Data from field notes you wrote

Answer: (B)

Secondary data means data that someone else collected for a different purpose and that you use for your own study. It’s data that wasn’t gathered by you, often drawn from sources like official statistics, maps, or historical records. This contrasts with data you personally collected through your own measurements, surveys, experiments, or field observations, which are considered primary data because you are the original collector. So, the description “data collected by someone else” is the best fit. The other options describe data you gathered yourself, whether through your own experiments, measurements, or notes, which are primary data.

Secondary data means data that someone else collected for a different purpose and that you use for your own study. It’s data that wasn’t gathered by you, often drawn from sources like official statistics, maps, or historical records. This contrasts with data you personally collected through your own measurements, surveys, experiments, or field observations, which are considered primary data because you are the original collector.

So, the description “data collected by someone else” is the best fit. The other options describe data you gathered yourself, whether through your own experiments, measurements, or notes, which are primary data.