The book is organized into three relevant broad parts (A, B, & C). Part A presents relevant principles of research methodology with regard to conceptualizations, research designs, measurement, sampling, data, qualitative research, academic research and commercial research issues. Part B discusses research methodology in relation to some of its relevant statistical tools and techniques. Part C presents some jargons used in research methodology. All the parts have benefited from relevant extant thought, in addition to comments and suggestions from colleagues, students, commercial researchers and organizational executives. Also, copious relevant references have been presented The book is likely to appeal to students (undergraduate and postgraduate), lecturers, researchers, and executives in organizations. Specifically, RESEARCH METHODS: Principles, Statistics & Jargons is for executives, scholars, researchers, academics and undergraduate and postgraduate students in colleges, polytechnics and universities. It is, also, for corporate and institutional executives and decision-makers whose policies, strategies and decisions are systematic and evidence-based.