Many courses on "scientific research methods" are taught at undergraduate and graduate levels in the field of social sciences. Although it is emphasized in the constitution, laws, curricula and regulations regarding education that another primary duty of schools and teachers, apart from teaching, is research, since 1997, when education faculties were restructured, such courses were removed from almost all teacher-training undergraduate programs. the results of many local, national and international studies conducted later showed that scientific process skills and problem solving skills were among the areas where primary and secondary school students failed most. This book has been prepared as a textbook for research methods courses taught at undergraduate level in other fields of social sciences as well as education. it was thought that the book could also be a reference book for all researchers working in the field of social sciences. more than 10 stocks were offered to be sold at the campaign price. This publication is ideal for readers seeking insightful and educational content. Prepared by experienced authors and printed with high-quality materials. Great for students, educators, and curious minds.