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GCSEs 2013: Top grades fall for second year in a row

23 August 2013 Last updated at 00:06 BST

There has been a drop in the proportion of GCSE exam entries awarded top grades, for the second year in a row.

More than 600,000 teenagers in England, Wales and Northern Ireland are receiving results, with head teachers saying changes have caused "a lot of turbulence" in grades.

Gillian Hargreaves reports.

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