The textbook provides a comprehensive introduction to quantitative research methods, tailored to the interests and educational content of students in educational sciences and teacher training programs. In eleven chapters, key concepts of statistics are covered and illustrated with examples from educational research. Practical application is facilitated through specially prepared PISA data and is explained step by step for the widely used software SPSS as well as the freely available software R. The transfer of theory to practice is consistently demonstrated, making access to this often perceived as difficult topic significantly easier. The textbook is suitable as supplementary reading for introductory lectures, for deepening central concepts, and for their practical application in methods courses.