Research is a part of all disciplines and it requires a clear and conceptual knowledge of techniques to be used in solving research problems. Research methodology is taught as a supporting subject in several ways in many academic disciplines. The core philosophical base for this book comes from my conviction that although academic disciplines may vary in content, their broad approach to a research enquiry is similar. This book, therefore, is addressed to multiple academic disciplines. This book updates students, researchers and teachers with the theory of research methods and their application in actual research problems. Collections of data, anlaysis of data, interpretation of results and report writing are the aspects systematically covered in this book.