Step 1
Go to the "Assessments" section in your course.
Step 2 - Duplicate the task
You need to create your own copy of the assessment label.
Find the assessment label, make sure it says "Second Attempt".
Click on the the "Menu" (ellipsis) icon and choose "Duplicate".
Step 3 - Move the task
You should now see 2 copies of the same task.
Click on the "Move" (arrow) icon to move the task to the current week, or the week in which you want students to do the assessment.
For more information on moving tasks see - https://myames.knowledgeowl.com/home/duplicatingandmovingactivities
Step 4 - Set restrict access
Click on the "Edit" (pencil) icon.
Click "Restrict access" and then click "Add restriction"
Choose "User profile"
Choose "stratanumber" from the drop-down menu and enter the student's strata number in the box below.
Follow the same process to add additional students. If you add more than 1 student make sure the "match" setting is set to "any". You can tell that you have the setting right when "or" rather than "and" is displayed between the restrictions.
Once you have added all your students click "Save and return to course"