Bonus payments

What are they?

  • Bonus payments are additional payments you can make beyond the normal payment for a participant's submission.
  • You can use them to allow for variable rewards, prizes, or to make partial payments to participant who have not completed your study but you still want to reward.
  • Sometimes researchers use them for subsequent parts of a longitudinal / muti-part study, where the format is such that those subsequent parts cannot be run in the usual way via a study page on your researcher account. This must be explained clearly to participants.
  • The participant must have participated in a study of yours in order for you to make the payment; it may be a completed study (from any time) or one that's still active.
  • They may be also be used to reward a participant for completing all parts of a longitudinal study, and this can be stated upfront in the study description as an incentive.
  • You can award bonus payments at any time after a submission is complete.
  • Commission is still charged on this type of participant payment.

How do I make bonus payments?

On study submissions page:

  1. Use the tick box on the left hand side against the participant IDs to select those you wish to pay. 
  2. Then select the 'Pay Bonuses' button at the top of the submissions list.
  3. The following box will appear, so you can enter the amount you wish to pay.

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Via your study export:

  1. Export your study data from Prolific (find out how to do this here) and identify the participants you wish to reward. 
  2. Create a list with these participant ID's and the amount you wish to pay (this amount can vary per participant). 
  3. While Viewing submissions for your study select the "More" dropdown menu and go to the "Bulk bonus payment" option.
  4. Insert your list of participant ID's and the amount you wish to pay. Screen_Shot_2018-12-07_at_14.45.58.png
  5. Click 'Pay Bonuses' 
    • Please note, this may take a moment to update. Do not attempt to pay the bonus payment a second time unless you receive a message to say the payments have failed. 

Note: bonus payments are charged at the same commission rate (+ VAT if applicable) as standard participant rewards.

Performance based rewards

  • You can pay participants variable rates on Prolific.
  • However, even if the rates are variable the minimum must agree with our reward per hour guidelines of > £5/hr. 
  • Bonus payments can then be paid in addition to the base reward based on performance. 

Record of Bonus Payments

  • Your study summary will be updated to reflect the bonus payments you have made. You can obtain the Basic and Detailed study summaries here:

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  • It can take some time for your study summary to update with the bonus payments you have made.
  • If the summary hasn't updated to include your recent bonus payment, please try again later, or try logging out and back in again.
 
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