1. INTRODUCTION  
2. DATA  
3. DETERMINING THE EDDINGTON RATIO DISTRIBUTION: OBSERVED SDSS GALAXIES  
4. SIMULATING THE GALAXY AND AGN POPULATION  
5. DETERMINING THE EDDINGTON RATIO DISTRIBUTION: SIMULATED SDSS GALAXIES  
6. A NEW METHOD FOR DETERMINING THE AGN CONTRIBUTION BY POSITION ON THE BPT DIAGRAM  
7. DISCUSSION AND SUMMARY