Topic 1 Data Sources # Flashcards
What is primary data
Data you have collected yourself
Ways to gather primary data
Questionnaires
interviews
experiments
observations
Pros of primary data
Can gather data that directly links to your hypothesis so can answer more specific question
Have complete control over method of collection
So know how reliable the data is
Cons of primary data
Might have problems with reliability (people might lie on questionnaires)
Expensive
Time consuming
Might be difficult or impossible to collect your own data
What is secondary data
Data that someone else has collected
Sources of secondary data
Data has often already been processed
Newspapers
magazines
websites
databases
historical records
office for national statistics
Pros of secondary data
Easier to get a hold of
Cheaper
Less time consuming
Data sets often bigger than what you could collect on your own
Cons of secondary data
Might be in the wrong format or rounded
Might not be relevant data available
Might be difficult to find data that matches your hypothesis exactly
Don’t know how accurate data is - may be biased or collected poorly