<p>I am an online Instructor and our student's take their quiz on merit.&nbsp; You can suspect when some student's continually ace all test that they are using a source.&nbsp; I have even had some students mistakenly tell me that they used the unit review while taking their test. I always like to think the best of students, but you have opened my eyes to the cell phone usage for quiz and test questions.&nbsp; Thanks for the advice.</p>