Briefly explain the main advantages and disadvantages of secondary data.
Advantages:
Can help to clarify or refine the issue or problem;
Might provide a solution to a research problem;
Might provide primary data research alternatives;
Can alert the researcher to other problems;
Provides background information enhancing research credibility
Disadvantages:
Might be outdated or questionable;
Could be hard to analyze;
Might be misapplied to your situation;
Might be biased - intentionally or unintentionally;
Might not be any available data on your topic.