We thank Marilyn Stapleton of the Ellis Medicine - Belanger School of Nursing for providing the nursing survey data and for her insights into the practice of nursing and health care research. The suggestions of the technical reviewers were invaluable for improving our cases. We are especially appreciative of the efforts of Brant Deppa, Dean Poeth, and Eva Williford. Mia Stephens and Ruth Hummel provided detailed and insightful comments that greatly improved the introduction. Our thanks also to Mary Ann Shifflet, Shirley Smerling, Eric Stephens, Amy Cohen, and Susan Madden for their encouragement and helpful comments. We gratefully acknowledge the many students at Clarkson University and Union Graduate College who pilot-tested these cases and offered valuable feedback.

The staff of SAS Press has been most helpful through this project. We thank book cover designer Robert Harris, technical publishing specialists Monica McClain and Denise T. Jones, and copy editor Lauree Shepard. Lastly, we are indebted to Stacey Hamilton for her enthusiasm, hard work, and guidance throughout this project.