Why is my friend's duolingo different?
I just saw my friend unsing duolingo and the way his course works is a bit different to mine. I can test out of any skill whenever I like and I am not required to do any translations. When he clicks into a skill the screen looks different - the lessons are all layed out in order, he has to do translations to complete a skill. He can only "test out" if he hasn't yet done any of the lessons. What is going on?????
It could be an attempt of Duolingo's staff to A/B test a new lesson format, see http://en.wikipedia.org/wiki/A/B_testing In short, they pick a limited subset of users and show them a different interface. Usually changes between interfaces are minimal, maybe in this case they're trying something totally different.
- do you mean these different layouts ?
- layout-01: http://imgur.com/a/MpEOi
- layout-02: http://s1.ipicture.ru/uploads/20120908/KQz7VhqZ.png