Should I be concerned about student access to a test bank? If I am using a test bank to formulate a test based on a textbook, should I be concerned about students getting access to the test bank? I have read that student use of a test bank is cheating, but I guess I don't agree with that 100%. If I am drawing test questions out of exercise sets, how is that any different? The test banks usually have hundreds of questions to choose from, so if the students are learning the test bank well enough that they can answer some fractional selection from that test bank, it seems like a win to me. If they are studying questions, at the end of the day they are learning. Or is that the wrong way to look at it?
As long as the test bank has enough questions to cover the material I'd not be concerned.  Those who work at it will learn.  I've given my own students "sample exams" for years, then put some of the sample questions on the real exam.  The students who were going to earn grades of A anyway got them right.  The students who were going to earn unsatisfactory grades anyway did not.  

A colleague performed the experiment of handing out the course final exam a week before the exam date.  Students were encouraged to get help studying, but then had to take the exam again in class.  He says it did not change the grade distribution at all.