That is, a teacher who has a large number of disadvantaged students in class may have a more difficult job getting a higher rating than teachers with fewer disadvantaged students. (hechingerreport.org)
Schools with relatively few disadvantaged students are widely thought to be able to recruit teachers of higher and more uniform quality. (educationnext.org)
Schools with a high percentage of bright children and few disadvantaged pupils were more likely to be rated good or outstanding. (schoolsweek.co.uk)