The PISA report also found that the attainment gap between the 25 per cent most disadvantaged and 25 per cent most advantaged 15-year-olds in Northern Ireland was the equivalent of almost three years of schooling, a statistic Mr Lyttle described as shocking.
“These findings contrast sharply with the recent Trends in International Mathematics and Science report, which showed 10-year-olds in Northern Ireland significantly above the international average for maths and science,” he said.
“Questions must be asked why and to this end, I welcome the Education Committee inquiry into educational underachievement and post-primary transfer.
“We must put children before institutions and deliver the fundamental reform necessary for an education system which achieves the highest standards and skills for everyone in our community.”