4 Ergebnisse.

Evaluators and applied researchers who want to enhance their understanding of research design and of threats to valid inference will find this book an effective guide. The First Edition was popular for its integration of multiple regression with evaluation desig, and for offering systematic ways to select the proper goals for single- and multiple-outcome evaluations. This edition has been revised to cover new issues and to clarify further the...

Significance testing - a core technique in statistics for hypothesis testing - is introduced in this volume. Mohr first reviews what is meant by sampling and probability distributions and then examines in-depth normal and t-tests of significance. The uses and misuses of significance testing are also explored.

Keine Beschreibung.

Evaluators and applied researchers who want to enhance their understanding of research design and of threats to valid inference will find this book an effective guide. The First Edition was popular for its integration of multiple regression with evaluation desig, and for offering systematic ways to select the proper goals for single- and multiple-outcome evaluations. This edition has been revised to cover new issues and to clarify further the...