Primary and Secondary Data - Strengths and Weaknesses
|
Strengths |
Limitations |
Primary Data |
Know that the data is reliable and valid
The data is specific to the enquiry
As much data as needed can be collected
The method of the collection is known
It is up to date
|
Time-consuming
May need specialist equipment/resources
The sample size needs to be large to be accurate
|
Secondary Data |
Easy to access
Low cost or free
Can be accessed quickly
A large amount of data sources is available
|
It is not specific to the enquiry
No control over the data quality
Data may be biased
Data may be out of date
|