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Book Description: It is generally agreed that a value added analysis one which adjusts raw data to take account of pupils' achievement at the time they entered a school is needed for fair comparisons among schools. However, since schools do not always have such complex data, OFSTED funded a study, carried out jointly by researchers at the Institute of Education and Hampshire County Council, to investigate whether simpler, more readily available information (proxy measures) would produce sounder comparisons. The team analyzed test scores for 11 year olds (Key Stage 2) in Hampshire using proxy measures including gender, eligibility for free school meals, age and average Key Stage 1 scores for 7 year olds in the same school. However these measures still produced misleading comparisons. The results provide little support for the routine use of such measures, either for inspection purposes or for publishing as league table rankings of schools. The researchers conclude that if either unadjusted or proxy measures are presented, anyone who wishes to use them, especially for school inspections, must fully understand their nature and limitations.

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