Only two schools in the Diss Express area saw a rise between 2011 and 2012 in the percentage of pupils achieving five GCSEs including English and maths at grades A*-C.
However, two-thirds of the state high schools covered by the Express -including Diss, Eye and Harleston - beat the national average of 58.8 per cent of pupils attaining the aforementioned Government benchmark.
Responding to a poor year, Suffolk County Council claimed that last summer’s GCSE results - released last week by the Department for Education - were hit by the downgrading of examination board AQA’s results.
Diss High School had 170 pupils sitting their GCSE exams last summer. Sixty-six per cent of those attained at least five grades A*-C in subjects including English and maths.
This matched the percentage set in 2011 - a figure that was two per cent down on 2010.
At Hartismere School in Eye, 127 pupils sat their GCSE exams during 2012.
Seventy-two per cent of that number scored five or more GCSEs at grades A*-C in subjects including English and maths - a drop of two per cent from 2011, but an increase on the 2010 figure of 68 per cent.
Harleston’s Archbishop Sancroft High School had 77 pupils sitting GCSE exams last year.
In all, 64 per cent of pupils at the south Norfolk school achieved results matching or bettering the nationally-recognised GCSE benchmark.
This was nine per cent up from pupils sitting their exams at the same school in 2011, and 13 per cent up from 2010.
There was less good news at another school in the Diss Express area, though, as Stradbroke High School’s percentage of pupils scoring at least five GCSEs at grades A*-C in subjects including English and maths was nearly 13 per cent below the national average.
Fifty-six pupils took GCSE exams at the school, which also saw its 2012 results down one per cent from 2011 (47 per cent).
Old Buckenham High School suffered an even more significant fall in pupils reaching or bettering the benchmark.
Despite 67 per cent of pupils at the school achieving it in 2011, only 49 per cent of the 125 pupils who took GCSE exams there last summer succeeded.
Attleborough High School was another school in the Diss Express area where the percentage of 2012 GCSE pupils reaching or bettering the Government benchmark figure was below 50 per cent (48 per cent - down from 51 per cent in 2011).
Thomas Mills High School in Framlingham had 169 pupils sitting GCSE exams in 2012; 73 per cent of whom achieved five GCSEs at grades A*-C, including English and maths. This was up from 68 per cent in 2011.
At Long Stratton High School, meanwhile, 67 per cent of the 122 pupils who sat GCSEs there in 2012 attained or bettered the national benchmark.
That figure was down from 72 per cent in 2011, though.
And at Debenham High School, where 124 pupils took GCSE exams last summer, 70 per cent of entrants achieved five or more GCSEs at grades A*-C, including English and maths.
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