Furret
growstuff
GagaJo From my work as an examiner and talking to Chief Examiners, I know that most teachers overestimate predicted grades. I've also seen it with the pupils I tutor, although I'm pleased to say that my first result this year (CIE IGCSE announced its results before the other boards) was a 9, which I confidently predicted.
Most teachers do NOT overestimate predicted grades. And many of their predictions are moderated. Your post rankles with me as you seem to be blowing your own trumpet while doing real teachers down.
Yes, they do Furret. The exam boards and universities know it. I used to do it myself and I was a real teacher.