This book has been written with a purpose to simplify some difficult topics on Methodology. Major methods of data collection (viz. Questionnaire, Schedule, Interview), sampling, basic statistics used for data analysis and report writing have been discussed at a greater length in a lucid style. This book will be useful for students of undergraduate, post-graduate, UGC tests and UPSC examinations. Academicians, Civil Servants, NGO workers will find this book useful for comprehension in social research planning, execution and evaluation. Basics of computer and its application including computation of measures of central tendency, measures of variability, correlation, regression in excel and writing a report, research paper or thesis in APA style in MS Word have also been discussed.