Hi Claus - sorry about that. We have been adding more content to A2 and your score is calculated relative to the whole level. So it doesn't mean you've done any worse, it's just the level has become a tiny bit larger...

Hi Claus - it's a little more complex than that. What will happen is when a new lesson enters your studyplan that you've covered before, and if that lesson has changed ("grown") since you last tested against it, then you may get a fractionally lower score - temporarily - even if you get it right. I'm simplifying what actually happens for brevity, but don't worry, if you see a lower score after a 100% correct test just be assured, it's us improving content. The scores will go up again after another kwiz or so, don't worry!