Hey there :)
Yes, the Bain SOVA is adaptive. The difficulty of the next question adjusts based on how you performed on the previous ones, so if you answer correctly you’ll usually get a tougher one next, and if not, it may get a bit easier. That’s why consistency is key: it’s better to get a steady stream of correct answers than to rush and make mistakes, since the algorithm is trying to place you on your true level.
best,
Alessa :)