"Good" accuracy
Default: > 90%

%

"Bad" accuracy
Default: < 80%

%

Minimum review count for new(ish) terms
Default: 5

"Good" accuracy needs to be greater than "bad" accuracy.
Both need to be between 1 and 100
Min review count needs to be a number greater than or equal to 1

You can choose different settings for each studyset inside Review Mode or a Practice Test for that studyset.