I asked Nonsuch to email me as well, just got this response:
We are aware of some small issues with the layout in the Maths SET paper. There were no errors in the content of the questions in the papers.
The issues were raised by only a very few number of children across all the schools. However when the issues were identified, it was mentioned to children in the later sessions across all the schools.
The Headmaster of Sutton Grammar School (a mathematician) is currently undertaking a statistical analysis of the marks of all the children who sat the test at all six venues, morning and afternoon, in order to generate each child's standardised score. He is confident that he will be able to detect any statistically significant difference in the error rate in those questions where the issue occurred between the morning and the afternoon sessions. If such a difference is found to exist, he will be able to adjust for it. As a consequence candidates will not be disadvantaged.Hmmm, but my logic tells me that if there is a question with a layout problem wouldn't it be better to mark the tests on the remaining questions and disregard the problem question rather than trying to do a statistical analysis
