After each quiz, students can email the results to themselves and to you. Instructions are available in the tutorial.
There are a couple ways to look for participation.
Email:
The email will come from admin and will start with the subject Certificate of completion ... Please check your spam folder for the email or search for "certificate of completion" in your email.
Screenshot:
Students take a screenshot of their tutorial results and send that to you as proof of completion. They could also upload that screenshot to Canvas.