I help in giving human factor training in both the start up phase and in the biennial continuous training. I am a bit tired of my students...especially those in aviation long term, being disillusioned in this subject. I have tried to find statistics or information where I can show that sitting the human factor training has in fact helped in the prevention of accidents and incidents in the maintenance environment. But have been unsuccessful in finding this information. Wondering if anyone knows where I could find this? Thanking you in advance. :)