Interpreting Results of Diagnostic Tests

It was a joy to see diagnostic test methodology applied in the article by Amendt et al entitled, “Validity and Reliability Testing of the Scoliometer®” (Phys Ther. 1990;70:108–117). Furthermore, as diagnostic test methodology is relatively new to the physical therapy literature, I was encouraged to see that the authors elected to elaborate on four of the key terms (ie, sensitivity, specificity, positive predictive value, and negative predictive …