Select two advantages of direct data
Source and collection method is known and verified
Data can be available from different locations and time periods
Cannot be certain of accuracy of data
The exact data required can be collected
Do not know bias was placed on collection
Data being collected can change in response to answers.
Which are the advantages of indirect data?
May not get a large range of data
Data from different locations and time periods is available
Analysis of the data may already be complete
The collection method is known and verified.
Large range of data available