tag:mentalfaculty.tenderapp.com,2010-10-19:/discussions/suggestions/3760-how-far-out-does-the-app-scheduleThe Mental Faculty: Discussion 2016-08-11T02:29:37Ztag:mentalfaculty.tenderapp.com,2010-10-19:Comment/351809292014-11-05T06:57:09Z2014-11-05T06:57:09Zhow far out does the app schedule?<div><p>Hi Zeppo,</p>
<p>The details of the learning schedules are complex, and we
deliberately don't go into great detail in the help pages. We want
the tool to be accessible to everyone, not just people who know a
lot about flashcard systems.</p>
<p>But if you are into flashcard systems, here are some details
about what we are doing behind the scenes...</p>
<p>The 'Cram' schedule is based on the Leitner system, which uses a
series of boxes. There are 5 boxes. Cards start in the first box.
If you get them right, they move to the next box. Get one wrong and
it goes back to the first box. The system makes the notes due that
are in the lowest occupied box.</p>
<p>Cram is the only system that is not time based. You can just
keep refreshing your due notes to make more due when you finish a
slideshow. This schedule is best when you are in the last days
before a test or exam and you just have to keep going over your
notes until they stick.</p>
<p>The other systems all have a time element. The standard 'Long
Term Learning' schedule is based on <a href=
"http://www.supermemo.com/english/ol/sm2.htm">one of Supermemo's
algorithms</a>. The schedule begins with a sequence of increasing
time intervals. Assuming you keep grading a note correct, the note
will first become due again after 1 day, then 6 days later, 16 days
later, and so forth. Get the note wrong, and the note starts the
schedule again.</p>
<p>(Even this is a simplification of the actual algorithm, because
the intervals are also adjusted based on how well you answer a
particular note. Answer wrong a few times, and the intervals for
that note shorten to help you out.)</p>
<p>The 'Date-Targeted Schedule' is unique to Mental Case. It is
basically the Supermemo algorithm, but it dynamically adapts to try
to ensure a certain likelihood of recall on the day you target (eg
exam). The intervals are increasing just like the long-term
schedule, but can be dynamically contracted or extended to try to
ensure you know the information on the day you need it. The
schedule thus combines the efficiency of the long-term schedule,
with the pragmatic need to pass an exam. It works best when your
target date is a few months away.</p>
<p>Best,</p>
<p>Sam R. — The Mental Faculty support</p></div>supporttag:mentalfaculty.tenderapp.com,2010-10-19:Comment/351809292014-11-05T15:45:23Z2014-11-05T15:45:23Zhow far out does the app schedule?<div><p>Yes, but my question was a very specific one. Assuming you
answer a card as correct each time using the Long Term Learning
mode, what happens? Does it eventually stop scheduling cards for
good? If not, once the interval gets out to around 1 year (assuming
it does), what is the next interval once you answer a card
correct?</p>
<p>In other words, what are the intervals between 16 days and
around two years time?</p>
<p>Is there a way to see when a card is next due to be studied?
(For instance, can I check a card and see that it is not due to be
tested again for another 67 days and counting, etc?)</p></div>zeppotag:mentalfaculty.tenderapp.com,2010-10-19:Comment/351809292014-11-06T08:51:46Z2014-11-06T08:51:46Zhow far out does the app schedule?<div><p>Hi Zeppo,</p>
<p>We use a long-term algorithm very similar to what is described
in the link to supermemo. We don’t do anything special, like
stop the schedule after a certain time. It goes on forever.</p>
<p>If you look closely at the linked page, you can see that each
interval is multiplied by a so-called easiness factor (E) to get
the next interval. The E value can go up and down dynamically. If
you get a particular note wrong a lot, E will be smaller, causing
the intervals to shorten. If you always get it right, the interval
will be longer. The largest E value is 2.5, so if you keep getting
a note right, E will be 2.5.</p>
<p>What that means is that if the time interval is 1 year, and you
study the note and get it right, the next time interval will be 2.5
years. It goes on like that forever, unless you mark the note
wrong, at which point it starts the whole schedule again at 1
day.</p>
<p>You can see when a card is next due. On the Mac, double click
the note, and then click the button bottom-right to show note info.
The ‘Next Scheduled’ date is when it is next eligible
to become due for study. (It may not actually become due, depending
on other settings, like whether you have set a limit on the number
of due notes allowed.)</p>
<p>On iOS, tap a note to show the details, then swipe to the very
bottom and go into Study History to see the next due date.</p>
<p>Hope that helps.<br>
Kind regards,<br>
Drew</p></div>drewmccormacktag:mentalfaculty.tenderapp.com,2010-10-19:Comment/351809292014-11-13T00:15:59Z2014-11-13T00:15:59Zhow far out does the app schedule?<div><p>Thanks for your reply. I appreciate you figuring that out for
me. Helps a lot. Seems like quite a leap to go from a one year
interval to 2.5 years. But I guess if you get it correct it the
first time you are tested after not studying it for a year, it is
probably pretty solid in your long term memory.</p>
<p>If I understand the Efactor thing then, I guess if someone gets
a card wrong and the card gets set back to a 1 day interval, it is
not exactly the same as getting set back to "square one" (i.e., a
card being studied for the first time). The E Factor of a brand new
card is 2.5 by default. But the card that gets set back to a 1 day
interval will have an Efactor less than 2.5 due to it having been
missed on the last attempt. Or does the Efactor get set back to 2.5
as well?</p>
<p>Zeppo</p></div>zeppotag:mentalfaculty.tenderapp.com,2010-10-19:Comment/351809292014-11-13T06:51:00Z2014-11-13T06:51:00Zhow far out does the app schedule?<div><p>Yes, the efactor will be less if your schedule is restarted, but
can build up again with a few correct responses.</p>
<p>The intervals are scientifically based, including 2.5 years.
Indeed, if you answer right every time, and even after 1 year, you
probably know that info pretty well, and can handle 2.5 years.</p>
<p>Kind regards,<br>
Drew</p></div>drewmccormack