1. Nancy K. Latham, PhD, is Research Assistant Professor, Health and Disability Research Institute, Boston University, 53 Bay State Road, Boston, Massachusetts 02215; nlatham@bu.edu
2. Diane U. Jette, DSc, PT, is Professor and Program Director, Physical Therapy Program, Simmons College, Boston, Massachusetts
3. Wendy Coster, PhD, OTR, is Associate Professor and Program Director, Therapeutic Studies and Occupational Therapy, Boston University, Boston, Massachusetts
4. Lorie Richards, PhD, OTR, is Research Health Scientist, Veterans Affairs Research Service at the Brain Rehabilitation Research Center, North Florida/South Georgia Department of Veterans Affairs Medical Center, Gainesville, Florida; and Associate Professor, Occupational Therapy Department, University of Florida, Gainesville, Florida
5. Randall J. Smout, MS, is Senior Analyst, International Severity Information Systems, Inc., Salt Lake City, Utah
6. Roberta A. James is Data Systems Specialist, International Severity Information Systems, Inc., Salt Lake City, Utah
7. Julie Gassaway, MS, RN, is Director of Project/Product Development, International Severity Information Systems, Inc., Salt Lake City, Utah
8. Susan D. Horn, PhD, is Vice President for Research, International Severity Information Systems, Inc., Salt Lake City, Utah