I have noticed three types of errors I make in using Trakaido (to learn Lithuanian).
- I simply don't know, and I know that. For example, how do you type the translation of "smart phone" ⚙️ išmanusis telefonas? I would not expect to get that right.
- I misremember. For example, "ji miegojo" v. "ji mėgo" - she slept v. she drank.
- I am just careless, and click the wrong answer despite knowing the right one.
My rule-of-thumb is: after the first type-3 error (carelessness), stop studying for at least 15 minutes