incentive (or penalty) for (not) completing peer review of an assignment

[RJWE]

Hello,

Recently I have started using peer reviews in assignments. I use the option of automatically and anonymously assign one peer review per student.

I now wonder: what is the penalty / incentive for students to complete the peer review? I have been searching for answers to this, but cannot find anything.

I can imagine two possibilities:

1. Students cannot see (or access) the score of the assignment until they complete the peer reivew, or
2. Students get a zero score for the assignment as long as they have not completed the peer review.

However, I can't find any information about this.

I hope to learn more about this soon :).

Thank you.
-R.L.