Which approach relies on analyzing data that were originally collected by others rather than gathering new data?

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

Answer: (A)

The main idea is using data that already exist because someone else collected it for a different purpose. This is secondary data analysis. It involves analyzing datasets, archival records, census figures, or previously published surveys rather than going out to collect new information yourself. It’s a cost-effective way to study trends over time or compare groups, and it allows you to leverage large or longitudinal datasets that you wouldn’t be able to gather on your own. The key limitation is relying on how the original data were collected, including what variables are available and how measurements were made, which may not perfectly fit your research questions.

In contrast, gathering new data through original surveys, experiments, or systematic observations is primary data collection. Field research specifically involves collecting data in real-world settings through methods like participant observation or conducting interviews, all anew. Reliability, on the other hand, is about the consistency or stability of a measurement tool, not a data-collection approach.