Excessive note taking, rewriting notes, rewriting slides. These all seem like study strategies when in actuality you are simply transferring information from one place to another. This is not actively engaging with the material.
Use questions to test yourself, but go beyond the surface material.
Do not wait until the weekend before an exam to start doing questions. The more exposure you have the better prepared you will be on exam day.
Change the question and answers to get the most out of them. Know why the right answer is right, but also why the wrong answers are wrong. How can you change the question to make each of the wrong answers correct?
Write your own questions/vignettes along with the answers. This is the ultimate in knowledge acquisition and engagement. If you can write your own question along with answers, you will have a much better grasp of the material.
Spaced Repetition is the most effective way to learn the material, and to be able to recall the material long after the test.
Spaced Repetition means that, prior to test day you will have seen the same material multiple times, with concepts you don’t know as well coming up more often while concepts you know very well come up much less often.