which statistics mean I am ready for a large exam?

james.scerbo's Avatar


15 May, 2013 04:54 PM

I regularly read the statistics in the decks I am using to study for a large exam.

Which statistics indicate my level of knowledge is adequate for a test on which I want to achieve 95% accuracy?

The Review count stats/chart indicate my ability on the cards for the most recent session and I am getting 97.3% for the c. 350 cards from that day's session.

It seems perhaps the section "Answer Buttons" is a better metric? My deck is only 19 days old so I do not have Mature cards. My Learning cards run at 76% correct and my Young cards at 93.3% correct.

Is that the right one to use? Or is there another way to look at this altogether?

Thank you.

P.S. I searched the Articles and Discussions about this but did not find one. If you this has been discussed, I would be grateful for the link and I will get the answer there.

  1. 1 Posted by Soren Bjornstad on 15 May, 2013 08:33 PM

    Soren Bjornstad's Avatar

    Mature statistics are the most useful ones to use in this case, but as you
    have not studied for long enough to get them, you will have to go with the
    young ones. Answer buttons (with the scope set to the right deck and time
    period, of course) is the best one to use here.

    Note that the rate of cards that you actually know at any given time is
    actually higher than the percentage you get right on review, as you will
    forget some of the cards only shortly before reviewing them, and know them
    in between. SuperMemo gives the rule of thumb in one place that with a 90%
    forgetting index (90% of mature cards correct on review), you should know
    about 95% of them at any given time.

  2. 2 Posted by james.scerbo on 16 May, 2013 07:09 PM

    james.scerbo's Avatar

    Thank you. That makes sense!

  3. Soren Bjornstad closed this discussion on 16 May, 2013 08:30 PM.

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