(Choose 1 answer)
Which of the following is LEAST true about extrinsic, or material, incentives?
A. You should frame incentives as gifts, not as payment.
B. Incentives given *before* the survey are more effective.
C. The more money you offer, the more likely people are to participate.
D. Lotteries (a chance to win a larger reward) are not very effective as incentives.
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