I don't think kids with SEN should meet different outcomes, but the instructor should be able to use their discretion and common sense. I trained a girl with Downs Syndrome who could ride perfectly well, understood and dealt with hazards and understood when and why to give way. She could look around her and meet all level one and two outcomes, but her signalling was incredibly wobbly; although she could ride one handed, sticking her arm out was the issue. She was desperate to ride to school (a one mile journey on exceedingly quiet rural roads) with a friend who could signal and so they rode together. She rode at the front and made all the decisions and the friend did the signalling if it was required. Two years on, she is still riding and able to signal. After a chat with the teacher and with a carefully worded certificate, I was happy to give her her level two badge back then and I feel it was justified.