Validity and Reliability are Important: Testing a Test

with Bruce Boynton, MD, PhD, MPH

After a brief introduction to tests in general, we will learn to calculate accuracy, sensitivity, specificity, and predictive value with a matrix. We will link these results to a discussion about Type 1 and Type 2 errors, the multiple comparisons problem, and prevalence and incidence of the condition.

Learner Outcomes:

• Evaluate a test using the confusion matrix.

• Understand the effect of prevalence and incidence on test evaluation.

• Understand and be able to explain Type 1 and Type 2 errors.

Dr. Boynton, MD, PhD has had a distinguished career as a pediatrician, physiologist, researcher, naval officer, and hospital CEO. He served as commanding officer of an infectious disease research lab in Cairo, Egypt and the commanding officer of the USNS Comfort, a 1,000 bed hospital ship. He serves on the AIA board of directors and is co-chair of the Research Academy Steering Committee.