Questionnaire is one of the important tools of data collection. It is defined as “A list of questions given to a human of persons for them to answer. It secures standardized result that can be tabulated and tested statistically. Questionnaire is a set of questions. Generally it is mailed to the respondents of collecting data. It is employed when the area of study is wide and the subjects are widely dispersed. In this method the researcher does not collect the data by himself. He relies on the information provided by the respondents.
There are two basic objectives of Questionnaire : 1) To collect information from the respondents who are scattered in wide area. 2) To achieve success in collecting reliable and dependable information. Types of Questionnaire
a) Structured Questionnaire : This questionnaire is named before the study is started and it is not possible to change it offer beginning the study.
b) Non Structured Questionnaire : This kind of Questionnaire is used more like a guide. It consists of definite subject matter areas, the coverage of which is required during the process of data collection. It is generally used in the technique of interview in which case it is called an interview schedule.
C) Other classifications: Questionnaire is also divided on the basis of nature of the questions that it contains. They are closed, open, pictorial and mixed.
a) Closed questionnaire usually contains itemized answers to the questions being asked various alternatives to the real answer are also given. The respondent is only to select the answer and put it down.
b) Open Questionnaire is just the reverse of the closed questionnaire. It is used in the cases where new facts are to be found out. The respondent is given the liberty to express his views freely.
c) Pictorial questionnaire is similar to closed types of questionnaire. Generally it is use for children of small age group on illiterates on person with lower Intelligent Quotient. Along with the questions, pictures showing the meanings of those questions one given. The respondent is required to give out the answers on the basis of pictures. Mixed questionnaire is neither completely closed non open. It consist of both the type of questions. Since it is combination of the types of the questions it is popular in social research. (Source: Reference text materials in Research methodology and google search engine)
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