My Department does not collect the information requested by the Deputy.
Individual schools test their own pupils' progress in literacy and numeracy using a variety of tests, including standardised tests. Information on pupil's progress, including those in early primary classes with literacy and numeracy problems, is kept at school level.
For the purposes of allocating remedial teachers to schools to support students with serious literacy and numeracy problems, it is estimated, as a general rule, that approximately 10 per cent of students will require such remedial teaching support. Research evidence for other age groups suggests that this is a reliable estimate.