The new 'view as student' feature allows an instructor to view the site in a student role. As a result, assessments are available to take as an instructor, and instructors can successfully take and submit them.
This can lead to some discrepancies in the resulting statistics, as the instructor's submission is not listed in the submission list, but is counted for statistics and item analysis.
I'm not sure of the best way to resolve this, but it needs to be consistent one way or another, i.e. instructors results are globally included and visible, or globally excluded. May depend on the use cases for instructors needing to take assessments this way.
Login as Site Owner > Select Student View > Select T&Q tool > Select Test
Site Owner is able to take test in student view
Take Test > Submit
In Student View, the 'statistics' for the Test calculates the Site Owner's submission in the scoring.
Exit Student View
Locate Test, click 'scores' underneath it
Site Owner's submission does not appear under:
Submission Status / Total Scores / Questions / Export
Site Owner's submission is however calculated under:
Statistics / Item Analysis