摘要：Abstract Purpose: terror management theory(TMT) posits that cultural worldviews and self-esteem function to buffer humans from mortality- related anxiety. TMT research has shown that important behaviours are influenced by mortality salience (MS) when they have no connection to death. the present research attempt to investigate TMT process in washing behaviour in Iranian population. Method: it was an experimental study. Thirty female student in Shahid Beheshti University served as research participate. In this study use Moudsley Obsessive- Compulsive Inventory (MOSCI) and compared time of hand washing in participations. Results: Obtained data were analyzed with using of independent T test. Result revealed that MS increase time spent washing hand
