Question

You pay respondents $10 at the start of a research study to increase participation. Vern, a respondent, wants to quit half-way through the survey. What is the appropriate course of action?
A) Allow Vern to quit and keep the $10
B) Allow Vern to quit but take back the $10
C) Try to talk Vern out of quitting, and tell him you will give him another $10 to continue
D) Try to talk Vern out of quitting, but provide no additional monetary incentive
E) Tell Vern that if he quits, he will need to pay a penalty of $5

Answer

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