🔍 Sensitivity and Specificity Explained Let's look at an example to make these two concepts—sensitivity and specificity—more concrete. For patients with radicular pain from the lumbosacral area, two commonly used tests to include or exclude this condition are the straight leg raise (SLR) test and the cross straight leg raise test. According to a review, the SLR has a sensitivity of 92 percent and a specificity of 28 percent. The crossed SLR has a sensitivity of 28 percent and a specificity of 9