DOs

Use incentives that appeal to different values or contexts

Offer a diverse set of incentives for the user to choose from

Identify if the kind of output required for the task or activity is creativity. If yes, offer incentives related to that.

Set a minimum reward size that will attract enough participants.

DON’Ts

Offer too large rewards. It will attract participants interested in the reward rather than the activity.

Be overly complicated with the reward structure.

Do not offer incentives that can insult the user (such as a gym membership after a diet study)