Which approach uses data collected by others but applies new interpretations?

• A. Secondary Data Analysis
• B. Primary source collection
• C. Field Research
• D. Population

Answer: (A)

Using data collected by others but applying new interpretations is secondary data analysis. This approach reuses existing datasets—such as government statistics, archival records, or prior survey data—and reexamines them to answer fresh questions or test a different theory or method. It’s useful because it lets you study large samples, explore changes over time, and pursue research with lower costs and faster timelines since you’re not collecting new data from scratch. At the same time, you’re working with data that weren’t designed for your exact question, so you need to consider issues like how variables were measured, whether the sampling matches your needs, and the quality or age of the data. Primary data collection, in contrast, involves gathering new information directly for your study, field research is a form of that in real-world settings, and population refers to the group being studied rather than the data method.