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Psychometric study of patient knowledge test.
Diabetes Care
|July 1, 1987
Summary
The Test of Patient Knowledge is a valid and reliable tool for assessing diabetes patient understanding across key areas like nutrition and exercise. It is sensitive to learning and readable for most adults.
Area of Science:
- Psychometric evaluation
- Diabetes patient education research
Background:
- Assessing patient knowledge is crucial for effective diabetes management.
- Existing tools may lack comprehensive psychometric validation.
Purpose of the Study:
- To report the psychometric properties of the Test of Patient Knowledge.
- To provide evidence for the test's validity, reliability, and readability.
Main Methods:
- A 50-item, multiple-choice test assessing seven diabetes content categories.
- Analysis of content, concurrent, and discriminant validity.
- Reliability testing using Cronbach's alpha.
Main Results:
- The test demonstrated strong validity and high reliability (Cronbach's alpha = .88).
- Readability was confirmed at a 7th- to 8th-grade level.
- The test showed sensitivity to instructional gains.
Conclusions:
- The Test of Patient Knowledge is a psychometrically sound instrument.
- It is suitable for assessing diabetes patient knowledge in diverse populations.
- The test can be used to measure learning outcomes in diabetes education programs.