“…Specifically, Group 2 showed a greater intensity of pain, older age, and lower educational level, and it might be that these variables were characteristic of patients who initiate a disability claim procedure. In fact, older age and lower educational level seem to be associated with a higher prevalence of disability in both chronic pain (Rethelyi, Berghammer, & Kopp, 2001) and other diseases (Eisner et al, 2006). In summary, the results of our study show that the index of the SCL-90-R, which has been previously considered as suggestive of response insincerity (PST), was not able to discriminate properly between patients and healthy volunteers who were asked to resemble a chronic pain disorder.…”