I have many years of experience gathering evidence from teachers for normal way of working (NWOW) and I’m not using ChatGPT.
Some teachers won’t tick the boxes on the forms to say it’s the student’s NWOW - so the SENCO or whoever is handling exam access arrangements needs to chase these forms up. JCQ don’t give warning like Ofsted - they do unannounced inspections and they will question the SENCO if available (not off sick with stress, for example). If the school doesn’t have NWOW evidence available in the files JCQ ask for, they can be closed down as an examination centre.
It is also subject-specific. If there is NWOW evidence for History and English but no other subjects, the student should only get extra time in History and English. Good practice is for students to complete mock exams with extra time and change the colour of pen they are writing in (or font on a laptop) to show how much they can produce in the extra time. These documents don’t have to be for every subject. In practice, a proforma with boxes ticked and a sentence or two from each subject teacher will suffice.
in most large schools, the SENCO doesn’t have time to do this data collection and it’s delegated to someone else. It doesn’t need to be the SENCO who fills out the Form 8. Some schools pay for an external specialist to do the testing, at additional cost to school, if the SENCO doesn’t have the correct qualification. The NASENCO qualification will not do.
JCQ tightened up the regulations over a decade ago to make sure students weren’t put at an unfair advantage if they had a private dyslexia assessment. It is up to subject teachers to identify which students are running out of time in exams. Autistic students should be given extra time for processing if their teachers agree they need it, and students on the pathway for autism assessment should have their processing speed tested using the tests the JCQ allow.
The system isn’t perfect and regulations are tweaked from year to year, so the person who has the most involvement with exam access arrangements should attend the JCQ course each year. It’s not necessarily the SENCO. The headteacher is ultimately responsible for making sure no student is disadvantaged or unfairly advantaged.
Also - children can and do get extra time for Y6 SATs.
An earlier dyslexia diagnosis can form part of the picture for evidence of need, but the student still needs to be tested using JCQ tests at the end of Y9 or later. They might score too highly for extra time by then.