When a student takes a question by question quiz (in both the current quiz tool and in Quizzes.Next), the blue next button is in the same general area as the blue submit button. Too often students get into a routine and don't read what the button says. This creates a situation where the submit button is unconsciously pressed and the student cannot go back to review flagged questions prior to submitting. The same unconscious behavior rolls over to standard tests as well. Relocating the submit button to the header or to the same location as the timer will alleviate accidental clicking.
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