Taking a sample involves questioning a selection of respondents from a target market. To ensure the results of a sample survey are accurate, the market rsearch process must identify a representative group of customers. If the slection is fair and accurate, the information should be statistically reliable.
Cluster Sampling - Units in the population can often be found in certain geographic groups or "clusters". Therefore instead of sampling in random areas or groups, sampling is carried out in a few areas typical of the market in question.
Convenience sampling - This involves gathering information from anyone available for the interviewer to survey, no matter what his or her background
Judgement Sampling - This involves the interviewer slecting respondents using his or her own judgement that they seemed to be, and looked representative of, the group of customers in the market being researched.
Comments
No comments have yet been made