Progress quiz experience
I took the German progress quiz about 2 months ago and I got 1.03/5.0 and I took it again yesterday and I got the exact same score. I also took the Portuguese progress quiz for the first time yesterday and I got 1.26/5.0 after only three weeks of practicing it on Duolingo. Now I think that because I know Spanish it helped me a lot. I am going to retake both quizzes in a month or two and I am going to see how that goes.
Update: I just took the quiz again (after about 4 weeks), and I did much better this time! On my German quiz I got 2.80/5.0!