Purpose
This article explains how to manually adjust the grade and feedback for an auto-graded essay question if the automatically assigned points seem inappropriate.
Procedure
Go into the quiz that you’d like to adjust and click on the Results tab to see the students’ quizzes.
Scroll down and click on Review attempt for the student you would like to adjust.
The student's quiz will open. Below the question you want to adjust, click on Make comment or override points.
That will open a new window for that single question, giving you the option to regrade it and leave extra feedback. Change the grade or feedback as you need then scroll all the way to the bottom and click Save.