Related Experiment Video
Updated: Oct 20, 2025

E-Patient Counseling Trial E-PACO: Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
Published on: August 1, 2019
Psychometric Evaluation of a 10-Item Health Insurance Knowledge Scale
Tyler G James1, M David Miller2, Guy Nicolette2,3
1University of Florida, Gainesville, Florida tjames95@ufl.edu.
Background:
College students are a priority population for health insurance literacy interventions. Yet, there are few psychometric studies on measuring health insurance knowledge - a core construct of health insurance literacy.
Methods:
We administered a health insurance survey to 2,250 college students. We applied Classical Test Theory and Item Response Theory methods to estimate psychometric properties of the Kaiser Family Foundation's 10-item health insurance knowledge quiz.
Results:
The scale is unidimensional, and a two-parameter logistic model best fit the data. IRT estimates indicated varying item discriminations (a range: 0.717-2.578) and difficulties (b range: -0.913-1.790). Precision of measurement was maximized for students half a standard deviation below the mean (θ = -0.686) health insurance knowledge ability.
Conclusions:
This scale can be used to identify gaps in health insurance knowledge among college students and be applied in clinical and community health education practice.
Related Concept Videos
Self-Report Tests of Personality
Dimensions of Health and Illness
Measures of Intelligence
Validity refers to how well a test measures what it claims to measure. An intelligence test should accurately assess intelligence rather than another characteristic, like anxiety. Criterion validity is one way to evaluate this;...
Assessment of the Cardiovascular System I: Subjective Data
Initial Enquiry
Ask the patient about their primary concern and thoroughly explore all reported symptoms.
Medical History
Investigate past illnesses affecting the cardiovascular system, such as angina, anemia, rheumatic fever, congenital heart disease, stroke, thrombophlebitis, dysrhythmias, varicosities
Inquire about symptoms...
Sensitivity, Specificity, and Predicted Value
Sensitivity is the...
Wechsler's Contribution to Measures of Intelligence

