I'm a little confused about the grading. What should be the difference between the grade 2 and 3. They both seem to mean that I thought too long, but when does 3 end and 2 start?
Would such interpretation of the other grades be correct?:
0 - I have no idea about the word
1 - Well, now after seeing the flashcard, I recall the word
4 - Needed 5-10 secs to recall it
5 - recalled within 5 secs
Thanks