According to a new study
, Ofsted gradings are unreliable. This is something which many teachers already know but, seemingly, many parents choose schools on the basis of the Ofsted report.
Case 1: the head of a school I worked in clashed with the lead inspector - the result was an "inadequate" rating which was not supported by judgements on the wider work of the school.
Case 2: one local school was given a poor Ofsted ratings because the lead inspector was settling a score with the headteacher, who had previously been asked to advise another school on how to improve, this had had a knock on effect on the inspector's position.
Case 3: it has been exposed that, in order to gain "good" or "outstanding" gradings, one academy chain, given notice of Ofsted inspection, brings in additional staff from other schools to give the impression that things are better than they really are.
Question: given that Ofsted is unreliable, how should parents decide where to send their children?