Anger rises at Dublin’s leading school over calculated grades



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The nation’s largest routine school says “serious flaws” in the grading process calculated for Leaving Cert students led to nearly half of their teachers’ estimated grades being lowered.

The Institute of Education, based on Dublin’s Leeson Street, has written to the government asking it to expand the grounds for appeal for this year’s Leaving Cert students.

The institute, which claims to have the largest number of Leaving Cert students in the country, more than 800, hired expert data analysis firm Krisolis to evaluate the methodology used by the Department of Education to award grades to students.

It states that the analysis found “serious flaws” in the model used by the department that produced a “bias” against large classes.

Overall, he says, 96 percent of his students had a reduced grade and 44 percent of the estimated grades of all his teachers were lowered. This compares with a national average of 17 percent of teacher ratings that were lowered.

He says this resulted in an average 30-point drop in what students would have achieved according to their teachers’ estimates; in some cases, there was a 77 point drop.

Education Minister Norma Foley, however, has said that the calculated grading process used by the department was “blind” to school types and was applied fairly to all students.

A detailed technical report published by his department shows that teachers in some cases overestimated the proportion of students who would get the best grades by a factor of two or three times the expected level.

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