errors in an online survey

What is the percentage of error in an Online Survey? How does this compare with offline surveys?

Online and Offline Surveys are two different methodologies of administering questionnaires in a research. The error in research may not only be caused by errors/mistakes while administration of the surveys but also because of sampling error, data processing mistakes and analysis level mistakes. All these errors/mistakes are common to both methods. So the degree of errors in the two methods can vary only in the errors/mistakes made while administration of the ...

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