Primary Data:

• It is collected directly by the researcher for the first time.
• It is original and specific to the research.
• It usually takes more time and money to collect.
• Example: Asking local students about their favourite snacks.

Secondary Data:

• It is already collected by someone else.
• It is available in reports, books and research papers.
• It is usually cheaper and easier to obtain.
• Example: Using government census reports.

Difference Between Primary and Secondary Data

Primary Data	Secondary Data
Collected first-hand.	Already collected by someone else.
Original information.	Previously available information.
Takes more time and money.	Takes less time and money.
Collected for a specific study.	Collected for another purpose.
Example: Personal survey.	Example: Census report.