Primary vs Secondary Data Identification
A researcher surveyed school students to find their favourite film star and published a report. Later, another researcher used this published report for a similar study. For the second researcher, this data is:
- Primary data
- Secondary data — Correct Answer
- Raw data
- Pilot data
Correct Answer Explanation
For the second researcher who is using the published report, the data is Secondary Data — because it was collected and processed by the first researcher.
Key Rule:
- Data is primary to the source that collects and processes it for the first time.
- Data is secondary for all sources that later use such data.
- The same dataset can be primary for one person and secondary for another.
- Secondary data saves time and cost but may not be perfectly suited to the new researcher's needs.
- Sources of secondary data: government reports, newspapers, books, websites, research journals.
📚 About this Topic — CH-2: Collection of Data
This multiple choice question is from CH-2: Collection of Data, NCERT Books, Statistics for Economics. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from CH-2: Collection of Data to strengthen your preparation.