Psychometric Study of Patient Knowledge Test
- Judith Garrard, PhD,
- Judy Ostrom Joynes, RN, MA,
- Lucy Mullen, RN, BS,
- LeAnn McNeil, RN, MS,
- Carolé Mensing, RN, MA,
- Catherine Feste, BA and
- Donnell D Etzwiler, MD
- School of Public Health, University of Minnesota Minneapolis, Minnesota
- International Diabetes Center Minneapolis, Minnesota
- Address correspondence and reprint requests to Judy Ostrom Joynes, International Diabetes Center, 5000 West 39th Street, Minneapolis, MN 55416.
Abstract
The results of a psychometric study of the Test of Patient Knowledge are reported. The 50-item, multiple-choice test, developed by Etzwiler and associates at the International Diabetes Center, consists of a total score and seven subscores based on seven nonoverlapping content categories: nutrition, insulin, general knowledge, methods of control, pattern control, exercise, and complications. The results described herein provide evidence for the validity of the test (content, concurrent, and discriminant validity), a high level of reliability (Cronbach's α = .88), readability for the layperson at the 7th- to 8th-grade level, and sensitivity to instructional gains. The literature on psychometric research with other tests of patient knowledge of diabetes is reviewed and compared with the results of this study.
- Copyright © 1987 by the American Diabetes Association
