How much time should I expect to spend studying and preparing for each class?
The general rule is that for every credit hour in class, you should spend 2-3 hours outside of class working on the class (e.g., studying, preparing, completing assignments). This means that for a 4-credit hour course, you should spend 8-12 hours outside of class working on the class. For courses that you find particularly challenging (e.g., statistics and research methods), you should be prepared to spend 3 or more hours outside of class working on the course.