[ABSTRACT] Psychological treatment in chronic-like diseases and in the area of pain has adquired a more relevant role. Cognitive-behavioral treatments for rheumatoid arthritis have shown an important efficacy (Chambless, Babich, Crits-Christoph, 1995). Additionally, emotions such as depression, anxiety and anger have become considered as relevant variables in pain and rheumatiod arthritis too. On the other hand, rheumatoid arthritis patients use to develop different levels of functional unabilit