I do not think the answer above is the complete story.
It turns out that browsers have settings for "Smart Quotes" and so, when taking a test, the browser is the program that is attempting to swap the straight quotes with curly quotes.
This is certainly a problem for Computer Science / Programming tests where the exact quote used makes a big difference.
The answer is to have all students turn off their "Smart Quote" preferences in Chrome, Safari, etc before taking the test. In this way, entering a single or double quote will be represented exactly as it should be on the keyboard.
The area for turning these features on/off in Chrome and Safari can generally be found in the Edit -> Substitutions area of the browser menu structure.
There may be other substitution features that are causing problems on quizzes beyond the quotes.
This discussion post is outdated and has been archived. Please use the Community question forums and official documentation for the most current and accurate information.