Most questions in social and biomedical sciences are causal in nature: what would happen to individuals, or to groups, if part of their environment were changed? In this groundbreaking text, two world-renowned experts present statistical methods for studying such questions. This book starts with the notion of potential outcomes, each corresponding…

This book was written to make it easier for classroom teachers to teach students the skills they need to successfully conduct, analyze, and report an experiment and to carry out independent research; it also presents strategies for holding successful science competitions. Part 1 contains field-tested teaching strategies for developing student…

An integrating framework to explain the research process was presented in the first edition of this book. This edition, which brings the material up to date, is designed to serve the Master s level student better while still meeting the needs of doctoral students of educational research. The nature of research, methods for qualitative and…