How many questionnaire require for data gathering of PhD degree?

Phani Bhaskar Pasumarthy @Phani_Pasumarthy

01 January 1970 0 8K Report

Normally there is any thumb rule or it depends upon objectives and hypotheses.

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Validity and reliability of test is compulsory for questionnaire?

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How to find the validity and reliability of questionnaire?

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How to determine the sample size from a population of 16000?

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How to frame the questionnaire as per the Likert scales?

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Please guide me in prepare the Likert scale questionnaire?

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