Development and Validation of the Diabetes Numeracy Test (DNT)
Public DepositedAdd to collection
You do not have access to any existing collections. You may create a new collection.
Downloadable Content
Download PDFCitation
MLA
Huizinga, Mary, et al. Development and Validation of the Diabetes Numeracy Test (dnt). BioMed Central Ltd, 2008. https://doi.org/10.17615/bbas-vx82APA
Huizinga, M., Elasy, T., Wallston, K., Cavanaugh, K., Davis, D., Gregory, R., Fuchs, L., Malone, R., Cherrington, A., De Walt, D., Buse, J., Pignone, M., & Rothman, R. (2008). Development and Validation of the Diabetes Numeracy Test (DNT). BioMed Central Ltd. https://doi.org/10.17615/bbas-vx82Chicago
Huizinga, Mary, Tom A Elasy, Kenneth A Wallston, Kerri Cavanaugh, Dianne Davis, Rebecca P Gregory, Lynn S Fuchs et al. 2008. Development and Validation of the Diabetes Numeracy Test (dnt). BioMed Central Ltd. https://doi.org/10.17615/bbas-vx82- Creator
-
Huizinga, Mary
- Other Affiliation: Division of General Internal Medicine and Public Health, Department of Medicine, Center for Health Services Research, Vanderbilt University Medical Center; VA Quality Scholars Program, VA Tennessee Valley Healthcare System; Diabetes Research and Training Center, Vanderbilt University Medical Center, Nashville, USA
-
Elasy, Tom A
- Other Affiliation: Division of General Internal Medicine and Public Health, Department of Medicine, Center for Health Services Research, Vanderbilt University Medical Center; VA Quality Scholars Program, VA Tennessee Valley Healthcare System; Diabetes Research and Training Center, Vanderbilt University Medical Center, Nashville, USA
-
Wallston, Kenneth A
- Other Affiliation: School of Nursing, Vanderbilt University Medical Center, Nashville, USA
-
Cavanaugh, Kerri
- Other Affiliation: Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, USA
-
Davis, Dianne
- Other Affiliation: Diabetes Research and Training Center, Vanderbilt University Medical Center, Nashville, USA
-
Gregory, Rebecca P
- Other Affiliation: Diabetes Research and Training Center, Vanderbilt University Medical Center, Nashville, USA
-
Fuchs, Lynn S
- Other Affiliation: Peabody College of Education, Vanderbilt University, Nashville, USA
-
Malone, Robert M.
- Affiliation: School of Medicine, Department of Medicine
-
Cherrington, Andrea
- Other Affiliation: Department of Medicine, University of Alabama, Birmingham, USA
-
DeWalt, Darren A
- Affiliation: School of Medicine, Department of Medicine
-
Buse, John
- Affiliation: School of Medicine, Department of Medicine
-
Pignone, Michael
- Affiliation: School of Medicine, Department of Medicine
-
Rothman, Russell L
- Other Affiliation: Division of General Internal Medicine and Public Health, Department of Medicine, Center for Health Services Research, Vanderbilt University Medical Center, Nashville, USA; VA Quality Scholars Program, VA Tennessee Valley Healthcare System, Nashville, USA; Diabetes Research and Training Center, Vanderbilt University Medical Center, Nashville, USA
- Abstract
- Abstract Background Low literacy and numeracy skills are common. Adequate numeracy skills are crucial in the management of diabetes. Diabetes patients use numeracy skills to interpret glucose meters, administer medications, follow dietary guidelines and other tasks. Existing literacy scales may not be adequate to assess numeracy skills. This paper describes the development and psychometric properties of the Diabetes Numeracy Test (DNT), the first scale to specifically measure numeracy skills used in diabetes. Methods The items of the DNT were developed by an expert panel and refined using cognitive response interviews with potential respondents. The final version of the DNT (43 items) and other relevant measures were administered to a convenience sample of 398 patients with diabetes. Internal reliability was determined by the Kuder-Richardson coefficient (KR-20). An a priori hypothetical model was developed to determine construct validity. A shortened 15-item version, the DNT15, was created through split sample analysis. Results The DNT had excellent internal reliability (KR-20 = 0.95). The DNT was significantly correlated (p < 0.05) with education, income, literacy and math skills, and diabetes knowledge, supporting excellent construct validity. The mean score on the DNT was 61% and took an average of 33 minutes to complete. The DNT15 also had good internal reliability (KR-20 = 0.90 and 0.89). In split sample analysis, correlations of the DNT-15 with the full DNT in both sub-samples was high (rho = 0.96 and 0.97, respectively). Conclusion The DNT is a reliable and valid measure of diabetes related numeracy skills. An equally adequate but more time-efficient version of the DNT, the DNT15, can be used for research and clinical purposes to evaluate diabetes related numeracy.
- Date of publication
- May 1, 2008
- DOI
- Identifier
- Resource type
- Article
- Rights statement
- In Copyright
- Rights holder
- Mary Huizinga et al.; licensee BioMed Central Ltd.
- License
- Journal title
- BMC Health Services Research
- Journal volume
- 8
- Journal issue
- 1
- Page start
- 96
- Language
- English
- Is the article or chapter peer-reviewed?
- Yes
- ISSN
- 1472-6963
- Bibliographic citation
- BMC Health Services Research. 2008 May 01;8(1):96
- Publisher
- BioMed Central Ltd
- Access right
- Open Access
- Date uploaded
- August 24, 2012
Relations
- Parents:
This work has no parents.
Items
Thumbnail | Title | Date Uploaded | Visibility | Actions |
---|---|---|---|---|
1472-6963-8-96.pdf | 2019-05-06 | Public | Download | |
1472-6963-8-96.xml | 2019-05-06 | Public | Download |