I applied through Access To Leeds 2 years ago as did a few of my friends, we had to attend 2 study skills days which basically just gave tips on revision and a bit more information about Leeds like an open day. One of my assignments was on study skills and about how people learn things and another was subject specific (Psychology), I was a bit worried about the subject specific one because it was on something I hadn't encountered at A Level, however I did pass both assignments as did everyone else I know so I wouldn't really worry about it too much, I think it would be fair to say they were quite lenient with marking. Hope this helps, good luck.