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Validating questionnaire process

The advantages of these types of responses are that they are good for gaining insightful data and avoid creating biased answers.Some disadvantages are that respondents may not know how much to write or how long to spend on the answer and analyzing opened-ended questions can be a daunting task.On forming a questionnaire, pretest or pilot validation is performed, which is followed by translation into the local vernacular language of the target population to administer it to the local group of patients, because all the patients are not aware of the original language of the Questionnaire in which it formed.It is desired to be validated in that particular language by the most appropriate validation procedure for each questionnaires, because there will be chance of particular word having similar meaning in different languages which can change the interpretation of the question.Questionnaires should always have a definite purpose that is related to the objectives of the research, and it needs to be clear from the outset how the findings will be used.

Note that for a negative statement, an agreement reflects an unfavorable response, whereas for a positive statement, agreement represents a favorable response.Validation of questionnaire have important implications to develop research methodology for the evaluation of the specific disorders and the validity of the research outcomes and thus it is important for clinicians/researchers who wish to use questionnaires as a research tool.Once the validation of a questionnaire is successful into the desired language, the questionnaire will be more acceptable by the society and Physician, which can provide more accurate diagnostic result.Participant responses are then converted into numerical form and statistically analyzed [5].In an opened-ended question, the respondent is required to come up with an answer himself.Questions should be numbered and ordered in a manner that is logical to the respondent, generally using ‘Funneling’ technique that begins with simple questions to put respondents at ease and then focusing down to more specific questions [2].When developing a questionnaire, items or questions are generated that require the respondent to respond to a series of questions or statements.They are relatively economical and a large population can be studied but their response rates can be low.It is easy to reach people who are spread across wide geographical area and respondents are able to complete the questionnaires in their own time [1].The Likert scale is one of the most widely used itemized scales.The end-points of a Likert scale are typically “strongly disagree” and “strongly agree.” The respondents are asked to indicate their degree of agreement by checking one of five response categories [7-9]. When using this approach to determine the total score for each respondent on each store, it is important to use a consistent scoring procedure so that a high (or low) score consistently reflects a favorable response.

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