This book contains 30 chapters covering all the essential topics of research methodology, epidemiology, and biostatistics. Question-and-answer format of chapters is the distinguishing feature of the book that will aid in better understanding of the topic and helpful for different exams preparation. Multiple choice questions and true-false statements included in the book will be a useful tool for self-assessment. Various checklists, statistical formulae, and a glossary of research terms appended to the book will be helpful in report writing and research documents preparation. The glossary of research terms will be useful for quick revision before viva-voce examinations. Dr. Malik Itrat is currently working as Assistant Professor in the Department of Tahaffuzi wa Samaji Tib, National Institute of Unani Medicine, Bangalore. He has over a decade of experience in teaching and research. His writing credits include books, chapters, research papers and review articles. He has authored two books and published several research papers and articles in reputed national and international journals. He has contributed chapters in the books published by well-known publishers . He is in the editorial boards of many national and international scholarly journals and is a member of several professional organisations.