Mail questionnaires are an effective way of asking questions of a largegroup of people, or a number of groups that are geographically isolated.The design of the questions in this case needs to be very explicit andeasy to understand. If the receivers do not correctly understand what itis you are asking, they will not answer appropriately. Mail questionnaires are relatively simple to design and conduct.However, they are very impersonal and usually the response rates leave a lot to be desired.
đang được dịch, vui lòng đợi..
