This talk, from the Department of Experimental Psychology, University of Oxford, was given by Professor David M Clark and chaired by Professor Paul Salkovskis. ABOUT THE SPEAKERS David M Clark, Chair of Experimental Psychology, University of Oxford: https://www.psy.ox.ac.uk/people/david-clark Paul Salkovskis, Professor of Clinical Psychology, University of Oxford: https://www.psy.ox.ac.uk/people/paul-salkovskis ABSTRACT: Considerable progress has been made in developing effective psychological therapies for common mental health problems but these treatments were rarely available to the public. The Improving Access to Psychological Therapies (IAPT) programme aims to overcome this problem by training a large number of therapists in the latest techniques and deploying them in new, specialist services for depression and the anxiety disorders. A unique feature of the services is that outcomes are recorded and publicly reported on 99% people who have a course of treatment (currently 640,000 per year). The talk covers the background to the establishment of IAPT and the way it has used the dataset to progressively improve the quality and effectiveness of the services.