It gathers all the relevant information associated with the member i.i household income, occupation, age, gender and etc.
It helps to understand the characteristics of the population as a whole.
Disadvantages:
It is very time consuming and expensive.
People which are being surveyed may not be able to provide with the accurate information.
Sample
Advantages:
There are various methods available to you such as street interviews, personal interview, postal questionnaires.
it is cheap and easy.
You are likely to get a broaden ideas about the answers provided.
Disadvantages:
It is time consuming.
you are likely to pick the same member to survey especially if you are street interviewing and you have other colleges which are likely to question to the same person.
