I used this book as a textbook for a graduate research methods course. I found it dense and difficult to understand, as did most of my classmates. If you are required to use this book as a textbook, then you are, unfortunately, stuck with it. If that is the case, I would recommend using a supplemental text (think Stats for Dummies). If you are trying to learn stats or research methods on your own and you have a choice of what book to use, forego this one entirely.