On 2 June, The Sunday Times printed an open letter signed by Christopher Ray, chairman of the Headmasters' and Headmistresses' Conference.

Tony Little, from Eton College; Jonathan Leigh, of Marlborough College; Emma McKendrick, from Downe House School; Tim Hands, from Magdalen College School and Anthony Seldon, from Wellington College, added their names to the 13 signatures.

They wrote “As heads of leading schools, we believe we have a duty to make the public aware at this time that problems in the marking and grading of public exams do not affect only one subject, or one level of exam, or schools belonging to a particular sector,” ..... “For several years we have been worried about the robustness of the "examinations industry" in England. We have concerns about erratic examiners and unexplained swings in results. There are also concerns that it is easier to get top grades with some boards than others.” See the link below for The Telegraph article.

http://www.telegraph.co.uk/education/secondaryeducation/10094224/Head-teachers-at-leading-private-schools-have-lost-faith-in-exam-boards.html