Question

Which of the following is NOT a disadvantage of online surveys?
A. e-mail surveys may be viewed as junk
B. the cost
C. some potential respondents have a pop-up blocker that prohibits a browser from opening a separate window that contains the survey
D. without the necessary technology, respondents can complete the survey multiple times, creating a significant bias in the results
E. some potential respondents may employ spam blockers.

Answer

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