 The criteria referencing scheme came into effect in June 1987, and since its introduction examiner judgment, along with the merger of the E and O/N grades and a change to a resitable modular format from June 2002, has increased the percentage of A grade awards from 10 to >25%, and the A-E awards from 70 to >98%.In 2007 Robert Coe, of Durham University, published a report analysing the historic A-Level awards to candidates who'd obtained the average norm-referenced ALIS TDA/ITDA test scores, he noted