what is questionairy method of collection of data?explain it's suitability with merit And demerit
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Advantages of Questionnaire:
(1) Economical:
It is an economical way of accumulating information. It is economical both for the sender and for the respondent in time, effort and cost. The cost of conducting the study with the help of questionnaire method is very low. In questionnaire the researcher has to spend for paper printing and postage only. There is no need to visit each and every respondent personally. So it does not require high cost for conduct of the research.
Rapidity:
Replies may be received very quickly in questionnaire method. In this case there is no need to visit the respondent personally or continue the study over a long period. Thor “fore in comparison with other methods, the mailed questionnaire is the quickest method.
Disadvantages of Questionnaire:
(1) Limited Response:
One of the major limitations of the questionnaire is that it can be applicable only to those respondents who have a considerable amount of education. It can neither be used for illiterate nor for semi-literate persons.
The questionnaire quite often fails to cover very busy and pre-occupied persons among the respondents, lazy and indifferent type of persons, the type of respondents who need to conceal a lot about themselves, the easy-going and shirkers among the respondents, the persons who have a unreasonable contempt for research and reform and the persons who unnecessarily doubt the research worker’s intentions, sincerity, devotion and commitment.
These are the people who constitute a very important segment of the respondents to be covered in the collection of data, but they can be seldom caught. Thus questionnaires are hardly appropriate for a larger section of this type of population.
(2) Lack of Personal Contact:
As in case of questionnaire the researcher does not go to the field, he is not able to establish a proper personal relationship with the respondents. If the respondent fails to understand some of the technical terms or he has any doubt, there is nobody to clarify these technical terms or doubts.
Even though the researcher tries in the best possible manner to make the questionnaire a simple, precise and convenient one, the aim and objective of the questionnaire can be much better explained personally than through any other means. Without the proper personal contact it is very difficult to motivate the respondent to fill up the questionnaire.