York has an impressive reputation for research with 19 Units of Assessment out of the 23 in the 2000 Research Assessment Exercise receiving a rating of 5 and three 5* (where 1 is the lowest and 5* is the highest possible) ratings in the 2001 Research Assessment Exercise.[96] The Department of English and Related Literature[97] and the Department of Computer Science[98] were later upgraded from 5* to 6* (indicating successive 5* grades), and the Department of Psychology[99] has been rated 6* for funding.