This method of collecting information consists contacting information consists contacting respondents on telephone itself. It is not a very widely used method, but plays important role in industrial surveys in developed regions.
Advantages
- It is more flexible in comparison to mail method.
- It is faster in obtaining information than other methods.
- It is cheaper compared to personal interviews; here the cost per response is very low.
- Recall is easy; callbacks are economic and simple.
- There is higher rate of response than mailing method
- Replies can be recorded without causing embarrassment to respondents.
- Interviewer can explain requirements more easily.
- Access can be gained to respondents who otherwise cannot be contacted for one reason to other.
- No field staff is required.
- Wider distribution of sample is possible.
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