During an open book test, students tend to believe that studying or memorizing is unnecessary because they "can just copy straight from the book. This is a myth for several reasons. For example, exams might have a word limit, which means that you cannot copy all the information that the book presents. Instead, you have to select the most important points, which could take you a long time if you are not familiar with the topic. Also sometimes they may word the question differently, asking to analyze or asking you to solve instead of define.
