Research Methodology: Techniques and Trends focusses on both undergraduate and postgraduate courses, assisting readers in understanding the fundamental principles and applying findings directly to real-world business, industry, and research organisations. The book is mainly designed as a resource as a textbook for graduate as well as M.Phil. students studying Research Methodology in many subjects at different institutions. It is intended that the book will serve as a guide for anybody interested in doing any kind of research study. In actuality, the book is the result of my years-long experience instructing M.Phil. students in the field. There are five chapters in the book “RESEARCH METHODOLOGY AND APPLICATIONS OF SPSS IN SOCIAL SCIENCE RESEARCH.” Research is introduced in Chapter 1. An introduction of scientific research is provided, together with information on its goals, purposes, traits, applications, and specifics of technique. Chapter 3 covers study design and goes into detail on the many kinds of research designs used in the social and physical sciences. Chapter 2 provides an introduction of the literature review and usage of Mendeley software. An overview of data gathering techniques, types, sources, and instruments is provided in Chapter 4. It encompasses a wide range of data gathering methods and tools, such as surveys, interviews, questionnaires, and many more. A thorough discussion of these methodologies’ applicability to management decision making has also been held. Sampling and Its Application, Chapter 5, discusses the many methods of sampling that are employed in research and how they are used in various contexts. The textbook on research methodology for doctorate and post-doctoral programs, including postgraduate courses like MSc, MBA, MCA, MS, and so on. Although the book is mainly aimed at students, it is also valuable for academics and businesses.