Once you have Moodle Assignment  activity created, click on its name to open it.

Click the "Settings" tab to go to the Assignment settings.

In the "Group submission settings" section, change the "Students submit in groups" setting to "Yes".

Set the "Require group to make submission" dropdown to "Yes".

Click "Save and return to course" to save the changes.

Go back to the assignment by clicking on its name.

Click "Turn On Team Evaluation (Beta)" to enable the Team evaluation plugin.

On this page you can adjust the default settings if required:

Enabled: Uncheck this box if you want to disable a Team Evaluation that has already been set up.
Self-assessment: Uncheck this box if you do not want students to assess their own submissions.
Automatically Release Marks: Uncheck this box if you want to manually release marks at a later date.
Public: Check this box if you wish to share your questions with other instructors.

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Adjustment Fraction: Change this setting from the default (50%) if you want more or less than 50% of the group mark to be adjusted for each individual. The larger this percentage the more the data produced by the questionnaire scales each individual's grade up or down.

Non-completion penalty: Change this if you want to change the default (10%) penalty for not completing the Team Evaluation questionnaire. This setting only changes an individual's grade if they do not answer the questions and does not penalise anyone else in the group.

 Enable and set a deadline date if you want to limit how long group members have to answer the questions.

Enable Team Evaluation for Moodle Assignment