Understanding Research for Nursing Students /by Peter Ellis. From the start of their training, its crucial for nursing students to be able to understand and evaluate current research to support their learning and reading assignments. However, many books focus on how to do research rather than how to understand and evaluate research. This book helps students recognize what good research is by providing an entry level guide to the main research methodologies used in nursing. It puts research into context for student nurses, explaining how they need to use the skills of critiquing and evaluating research throughout their course and how this is linked to evidence-based practice.