Others have examined the sensitivity (number of patients correctly diagnosed with a fracture; true positives) and specificity (number of patients correctly identified as having a radiograph with no fracture; true negatives) of clinicians’ X-ray interpretation skills (Benger, 2002; Overton-Brown and Anthony 1998; Sakr et al., 1999). Benger (2002) examined 300 patients and reported 26 false positives and four false negatives with a sensitivity of 96% and specificity of 87%.