A review book isn't enough. I'd memorize every term in the review book, and go over KA vids and passages. I took the exam last august and literally i think my score dropped a lot because there were so many unfamiliar terms. I think the name of the game is when you don't know something, straight up wikipedia it and know it a little more in depth. Also go over the AAMC outline and make sure you're not missing a lot of testable concepts. A lot of it is also memorizing lists like knowing the order of development stages, and types of personalities. Also being able to understand a theorists perspective and how it relates to a certain view or experiment will help. In summary, its the one section where straight up memory dump sort of helps, but you still gotta know how to analyze experiments/studies.