So I set up a time frame and do Anki in that time. So the next Good interval thereby should be: 2 * 2,35 * 1 = 15,84, but. Easy Bonus is 1. It’s not difficult understanding what each parameter means. I discovered the problem when I took a month long vacation from Anki, came back, postponed all my cards, and then noticed that all my intervals had been hosed. For example, if you’re using the default Anki settings (250% ease factor, interval modifier is 100%, learning steps are 1min 10min, relearning step is 1 minute, and your new interval after a lapse is 0% (meaning it will set back the interval to 1 day when you fail the card and pass it)), and assuming you’re always pressing Good, then your. It's because Anki has a "Fuzz_Modifier". If you’re getting 100% of your cards right this means you should increase the interval modifier. Changing the interval modifier to 200%, for example, will make every interval twice as long. I’d like to be able to modify these values. So will the interval modifier setting, but you have the option of selecting your target retention in FSRS. When I was a beginner, I was particularly eager to understand the basic algorithms of Anki. And obviously, i do it for each study Topic separately. IntroductionWork with the material outside of Anki so that the knowledge is more solid. Steps (in minutes): 1 30 90 240 (increasing the interval and less frequently in the hopes that it’ll be harder to recall but for stronger memory consolidation) Starting ease: 250% (back to default) Interval modifier: 120%. At first I was thinking I should set it to 90% instead, because I was worried that if it tries to. So Supposing MYSELF am this crazy, and spending this much of my precious living with Anki, I better be using it as best as I can. Then all intervals will be shorter. From the Anki docs: Interval modifier allows you to apply a multiplication factor to the intervals Anki generates. See my preferences below:. Lowering the intervals overall (with a reduced interval modifier) is not an option because this would lead to a lot of additional work, check the calculations in the manual here. tenderapp. Run this add-on once to set Ease of your cards to 131% and change Interval Modifier and Starting Ease of your decks accordingly. Say you have the following setup:If you're looking to go from 95% to 90%, use the formula like they say on that page: ln (0. This add-on reduces the next interval for very mature cards which should slightly increase their retention rate. 1. E. Anki understands that it can be necessary to see a new card. Interval modifier should be 100%. ghranx January 3, 2023, 9:36pm 8. I use a dynamic Ivl Modifier - for each Interval Range - a different value. Description. 15625 Then every 365 days thereafter, since maximum interval = 365. To make the process simpler, make a test deck; add 30 new cards; add a new Options Group: 20 1440. Sometimes one of these cards comes up, and I want to review the card [perhaps I didn’t quite remember it but answered with a different form, or a synonym, or I have learned more nuance about the. It's better to just focus on the actual interval by setting your interval modifier appropriately. io Target An 80-90 Percent Success Rate In Anki. Reviewing easy cards isn't very rewarding, and neither is reviewing very hard cards. 00 to a value like 1. When a card is in learning: Again will be the first learning step. When you have done that, put in more learning steps if you haven't already. 2) on iOS 14. longer review times per card but far greater intervals (some set the modifier to around 1000%. Those can be used to tune learning steps and. Hello, I’m having a hard time understanding the “Reviews” options page as I recently started to adjust the “Interval modifier” percentage. Currently have mine at 25 1440, graduating interval 3 days, easy bonus 150%, interval modifier 100% (I'm pretty sure these are the recommended AnKing settings). If your true retention is above what you think you need, you can consider modifying your interval modifier. Generally, I recommend using a higher interval modifier (maybe around 150%) and lowering the graduating interval to around 1 day to make sure you're reviewing material frequently. It has an interval of 1 day, an ease of 230% and the interval. To change Anki card intervals you first need to: Choose the deck you want to modify. 1. There are 2 things that limit how much interval modifier can decrease the interval: Hard interval can’t be less than previous interval; Good interval can’t be less than hard interval; so if a buttons interval is less than previous interval, anki will automatically change it to previous interval. Max reviews . /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more. 5 * last interval. -My Beginner Settings-Reviews- Maximum Reviews Per day: 9999 Easy Bonus: 130% Interval Modifier: 100%Grad interval 1 day (load balancer handles this Easy interval 4 days (load balancer handles this) Max reviews/day 9999 Easy bonus 130% Interval modifier 100% Max interval 36500 Leech threshold 4 Note that these are the settings. Low retention rate renders Anki useless, can make you hate your reviews or even stop using Anki completely. (One day overdue would be a Good Interval of 7 days). More learning steps so that the information is seen more often after the card graduates. 9% for new, 96. Change your Anki settings, reformat your notes, delete problematic cards. New interval=Memory based tests are kinda straightforward: "In 1492 Columbus sailed the ocean blue", and your Anki deck mostly fills that gap, but if you feel the absolute need to cram memory tests, use Quizlet and look around on Reddit for the ways to convert Anki decks into Quizlet decks. 95% percent because immediatly after a review you would remember all. Repeat 2 more times ( to get a bigger sample size); add the resuls. Always aim to get the 85% success rate. An interval modifier of 65% would work. The requestRetention of FSRS4Anki is equivalent to interval modifier. Yes, the license of this addon is the same as the code it originates from. For me, this usually means adding a context. Additionally, the frequency (interval modifier) the cards appear after the student fails them should be adjusted. It's probably best to trust Anki's algorithm for spaced repetition. Here is my observations and thoughts so far: In one of my decks I’m using an “Interval modifier” of 65% to shorten the review intervals. 50, Interval modifier 1. Adjust ease factors in Anki based off of performance in order to hit a target success rate. Interval modifier- 100% Max interval- 365 days Hard interval- 50% Lapses, steps- 10 30 Lapses, new interval- 25% Lapses, minimum interval- 1 day. 00 hard interval: 1. No more ease/interval modifier/new interval tuning necessary. If your Interval Modifier is 150%, then Anki would calculate the new interval as normal (Interval * Ease Factor = New Interval) and then. Let us assume after 30 days I find my retention to be 75% and hence need to increase my interval modifier again. roxgib March 10, 2022, 9:00am 4. Cards with lower ease appear more often, and vice versa. Anki almost requires that you understand what SRS and a little bit about deck options and the four answer buttons before you start. Otherwise this algorithm could be constantly chasing. Warning: If you use the same Options Group for all decks, then all will be affected. It simply increases your intervals across the board for all your cards, which counteracts the chronically low Ease Factors in your deck. 45 and I believe I had a interval. . No more ease/interval modifier/new interval tuning necessary. Decrease your interval modifier so the cards are showing up closer together. This is my best video on the topic: The BEST Anki Settings and Algorithm Explained (by an expert!) Anki expert indeed!Each Deck can have its own settings - this includes New and Review counts, but also things such as Ease, Interval, Maximum Interval, etc. This, I am not sure about. Expertium:. 20 or 1. So you will see what fits your needs best. Answer: 30 cards. I used to use the Anking interval settings (30, 1440). The requestRetention of FSRS4Anki is equivalent to interval modifier. Maximum interval: 36500set the Maximum to 5d. Interval Modifier; Hard Interval; New Interval; Custom Scheduling; Deck options primarily control the way Anki schedules cards. My recommendations: Current Deck Options: High retention goal; I want to learn a lot of cards daily and see them frequently Maximum reviews/day: 100 This is 2x my New card count Easy bonus: 130% This is standard, I wouldn't decrease it, and I didn't increase it for my high-retention priority decks Interval Modifier: 85% I emphasize. The default settings in Anki are set for this result: "For moderately difficult material, the average user should find they remember approximately 90% of mature cards that come up for review. 68. 62) while Anki is more around 2. You cannot set a retention percentage as a goal directly, only indirectly (through the "interval modifier"). However, Anki during MS3 year is quite different than the early MS1/2 days. (200% is much too long, mine is set to 130% for my frequently used decks) More information on the interval modifier and what you might want to set it to here:Adjusting your deck options (particularly interval modifier and new interval, but also maximum interval and maximum reviews per day) gets you to the same place. But directly setting the again, good, hard, easy intervals is not provided by the application. Imagine we have a current retention rate of 85% and we want to increase it to 90%. That’s crazy. We would like to show you a description here but the site won’t allow us. . 00 so it doesn’t influence the result at all. 30. Interval Modifier; Hard Interval; New Interval; Custom Scheduling; Deck options primarily control the way Anki schedules cards. The goal is to find the bad interval range and 'fix' the problem. The default starting ease is 250%. Retrouvez-moi en live sur Twitch : ! Dans cette vidéo, nous allons étudier plus en profondeur les réglages disponibles dans. 下面对于高级设置中的3个参数——Interval modifier、Hard interval和New interval分享我的看法： Interval modifier （间隔修饰符）越大，复习间隔越大，以1. With the starting ease back at 250%, you should return the interval modifier to 100% or at least closer to 100%. easy bonus and interval modifiers, will affect the way anki schedules cards for the next days, some times you want it to give more separation or less separation between the scheduled days for the cards and is related to the answer buttons, so really to explain all the interrelations we would need a real expert to explain it with apples and pears. Of course, I expected that this would increase my future review load. However, this would actually not work because for review cards, Anki always makes each new interval at least 1 day. My 2 cents, how I set up all decks: New cards per day: 9999 New card steps: 15 60 Lapses steps: 60 Reviews per day. 1. You can modify them in fsrs4anki_scheduler. Interval Modifier. This add-on-free version of Low-key Anki is what has been implemented in the recommended option settings above. Lapses. The requestRetention of FSRS4Anki is equivalent to interval modifier. You can also try other settings such as starting ease, steps, and graduating interval. 1. These settings were used for 2 week exam intervals that tallied up to. This add-on reduces the next interval for very mature cards which should slightly increase their retention rate. I guess we have a misunderstanding here. The #1 social media platform for MCAT advice. Today I want to introduce how to use the FSRS4Anki custom scheduling. Only use the with the Anki version that was the latest when they were released otherwise your chances of getting errors are higher. Two examples - your "general concepts" category is suggesting a 250% interval modifier - I'm going to hazard that this will not give you 85% retention, rather much lower because of the huge intervals it. It is recommended that you spend a few weeks with the defaults to get a feel for how Anki works before you start adjusting options. Alternatively I set Interval Modifier this to 70%. If you set it to 0. The interval modifier is applied on top of the existing scheduling, so a. Let’s say you have a card where a Good answer will result in you seeing the card in 10 days (interval = 10). Maximum interval 36500 Starting ease 2,50 Easy bonus 1,30 Interval modifier 1,00 Hard interval 1,20 New interval 0,00. Again I would do something like the new cards but less intensive. Anki usage is significantly associated with increased exam scores regardless of a student’s inherent test-taking ability and may be beneficial for students with lower MCAT scores. As you say correctly the Fuzz gets added after I click on the button, therefore cannot be the reason why. If you can adjust the interval modifier until you get about an. In this case, an example interval sequence with a multiplier of 200% would be: 7d, 14d, 1m, 2m, 4m, 7m, 10m, 13m…etc. In 'Preferences', set "Learn Ahead limit" to ZERO (. This means you will see the cards more frequently over the week. Then this card would benefit from the interval modifier. That doesn’t sound huge but over the course of a week, it adds up to saving me 350 cards) Max interval: 270 Bury related reviews Lapses: Steps: 10 1440 4320 Minimum interval of 5 I also hit easy a tonnn. So using the. New interval can be anywhere from 50-75%. But please make sure you understand why Anki is choosing certain intervals before you use advanced settings like an interval modifier. 92 * 1. I am creating a new deck and want low retention of 60% - so out of experience I would want to start with an interval modifier of 130% ( just a gut call). The “Easy bonus” is set to 130%. I've set my lapses at 20 1440 8460 with a new interval of 20%, because I find that at this point (started using (Z)Anki correctly at the beginning of January/2nd block of M1 year) due to using the default max interval (10 years!), if I get a card wrong, it's usually either something I've gotten wrong a bunch. Having an add-on that slighly lowers the interval for. So the higher the number the higher the interval for the easy button hard interval 1. I could also turn up the starting ease and make the interval modifier smaller with the a similar result. To decelerate Anki's intervals, change the Ivl Modif from 100 to 60%, to start with. 9 hours is a lot, but that's because you may be using Anki to learn new words that don't mean anything to you initially. Now, one issue that throws a wrench into the works is that in the vanilla algorithm you get penalized for getting a card wrong (or hard) but you only get rewarded (in terms of ease. RS vs SS is mainly discussion on number of review vs time spend on reviews. Two weeks ago I lowered my interval modifier to 90% to help with retention. Interval Modifier. By default, Anki's goal isn't to get you 100% recall rate, but to optimize the amount of time you have to spend on memorizing. The horizontal axis is your personal retention rate at (roughly) default Anki settings. 2 months in reset back to 5 mins with the again button…Let the interval be the flashcard’s interval, by default be the New Interval, default graduatinginterval = 1. So better study more and use a slightly lower your interval modifier for a while. But given a large number of reviews, that should average out to. So wouldn't I expect the "easy" interval to be the same as the "good. 2 If you need to do it on SOME cards only ( due Today ), here is suggested flow: the Mark -- to see it in Browser ( better then due date in parentheses). The interval modifier is essentially just a coefficient that is applied to all intervals in Anki. 72% at the. 0. Should I directly go to 0. Interval modifier= This multiplier is applied to all reviews, and minor adjustments can be used to make Anki more conservative or aggressive in its scheduling. I’ve read of people who use memory palaces and other techniques to emphasize (often much) longer review times per card but far greater intervals (some set the modifier to around 1000%(!)). There is another 'tool' that allows you to change the Interval Modifier from 0% to any number you want ; and do it efficiently. I know how to work out how much I'm meant to change my interval modifier by, but in terms. CryptoAnki Desktop. -Interval modifier: 100%-Maximum Interval: 180% Lapses:-Steps (in minutes): 30 1440-New interval: 20%. So the current interval is 100 dates, which means I saw aforementioned card 100 days ago. 3. But for an exam you might need to remember more. You're just making more work for yourself by setting a low max interval like 60 days. I was on 25 cards/day with 250 max reviews for a while, and now im on 50/500 as I near the end. The documentation shows its a exponential scale between retention rate and reviews. js. Zeitdauer Modifier is a non number you set in this settings. interval_multiplier < 1 my interval would decrease. Recently…What you are looking for is the Interval Modifier setting, which multiplies all intervals by a fixed amount, and can be easily and instantly changed based on your needs. Something like (10 1440) with a min interval of 3. I don't think there's a way to fix that without reducing Anki's effectiveness, though. Max new per day. I think that would generate a large workload but that's your call (personally I use an. For my sentence deck. In other words, I'm not 100% sure that the interval modifier is going to be what you need to. Also you can watch "Guide to Anki Intervals and Learning Steps" (this video is long, so just watch from "How intervals are calculated" to "Don't get stuck in "Ease Hell") in youtube. Let's try this add-on - Anki Simulator. Instead of hard capping a maximum, decrease your interval modifier. 5 = 25 days. Please see . October 15, 2022 by Siim Andres. I was hoping that SuperMemo’s algorithm’s claims of targeting 90% retention (and the. Here is my observations and thoughts so far: In one of my decks I’m using an “Interval modifier” of 65% to shorten the review intervals. 3125 (+117. This was tested on Anki version 2. I use 1. You can modify them in fsrs4anki_scheduler. Anki is great to learn vocabulary and not so good to improve writing/listening. So I have LKA installed on 2. Easy Interval 4 days Starting ease 250% REVIEWS: Easy Bonus 130% Interval Modifier 100% LAPSES: Lapses 10, 60 New Interval 15% - THIS WILL BE CHANGED TO 70% in accordance to the Low Key Anki suggestion Minimum Interval 1 day Leech Threshold 4 - THIS WILL REMAIN UNCHANGED in accordance to the Low Key Anki suggestionBy default, new interval is 2. With Anki, you have full control over the length of the initial learning steps. Remember that the key to knowledge is not repetition, is relearning : anki shows you the notion when it thinks you forgot it, this. 5. You will find that your study session has a very different character when you are only getting 90% correct, so be ready for it. M. I use default settings and works well. textbooks, lectures), rather than some rote memorization task (random vocab terms). One final thing to note is that Anki forces a new interval to be at least 1 day. Get let’s compare the two in one long notion. Lower modifier means that you will get lower time periods. 5. So what. 90) / ln (0. 2 Likes. You’re doing an extra 2 reps for every card you add- that adds a lot of time to Anki that you can instead just use to read. ”. Low retention rate renders Anki useless, can make you hate your reviews or even stop using Anki completely. The “Easy bonus” is set to 130%. I'm not at all familiar with the Anki codebase, however, so I could be completely wrong. If the card had a 100 day interval, the default of 0% would reduce the interval to 0. CryptoMy past month retention is 76. My investigation into the settings and algorithm optimization only led to more frustration and questions. I add just a few cards a week. new interval, starting ease, and interval modifier become irrelevant. You should review all of them when they are scheduled, that's why you should study all decks. Easy Bonus / Interval modifier / Max. This makes all review card answer buttons change by that percentage. interval modifier: 1. Go to Anki r/Anki • by. I'm just wondering, for someone who knows more about Anki than I do. How can I customize the Option group so that I can change Interval modifier for separate deck/subdeck? Anki Forums Interval modifier for each deck. 3, which applies for “easy” reviews (hence the “4” in the name). The Interval Modifier multiplies whatever interval you would usually have by this value - so all review intervals are, for instance, 80% of what they would usually be, causing the cards to come up more often. Agree with u/GitProphet that a >97% retention means. From what I understand, I'm meant to change the interval modifier for decks to get my pass rates closer to 90%. I knowledge it’s crazy though. Study Now: for 1d ivl, click 'Bury". 62) while Anki is more around 2. So essentially the formula is 2. My leech threshold is 15 lapses. 95) = 4. At its default of 1. By default, new interval is 2. However, I noticed the latest version of Anki changed the entire interface for the UI and I just want to double check I'm setting it up correctly: Should I go to "new cards" -> "learning. This, I am not sure about. I was on 25 cards/day with 250 max reviews for a while, and now im on 50/500 as I near the end. e. If self. T he next time Anki will show the card is: 10 * 1 * 2. the learning step). Every day, I unsuspend one old leech card and relearn it. What I mean is, I will see a new card, and select “Good” (for which my. I read anki manual on changing interval modifier. thank you sm!! If you are syncing the desktop client with the app then the intervals for any given card should be the same on both. Sets the Ease factor of all the cards in your collection to the value you choose, and updates Interval Modifier and Starting Ease in every option group. Dramatically increase the interval modifier and starting ease because it doesn't matter much if you review a card 10 times or 12 times but it saves a lot of time. Play with "Interval Modifier" -- try 80%. On PC Anki you click a deck's gear, options, reviews, and lower the interval modifier percentage. Press Good, the next time Anki will show the card is: 25. 1,10, 1 day, 3 days >>> graduates >>> 4 days >>> algorithm takes over (250 ease and 71 modifier) My cards go straight to 1 day since all my cards are from immersion by the time I mine them I'm already pretty familiar with the word. So you will graduate the cards on the second step. If your goal is to repeat a card once a day for multiple days, you can do that by setting more learning mode steps, instead of by adjusting this modifier. delete/retire cards once they reach a certain interval (manually, or via Migaku addon). 0. your rate and if it's 95% you should make your intervals longer since it indicates that you spend way too much time on anki. Also, play with Pretzel and verify the bad range found before. js. First, Sort cards by "Last Interval" -- increasing order; reschedule in groups of n - cards using different Intervals; Example: 7d, than 10, than 14, etc. In addition you can also rise the "hard interval" to reduce the gap between hard et good. Ease hell definitely wasted a lot of time for the first few years, but honestly I think it depends on your use case. Now you have a card that is exactly at 250% and you always answer the card correctly. In Anki, you adjust the interval modifier to control your retention rate indirectly. Hello Everyone, Deck : Anking Overhaul V3 & Self made cards New Cards - 300/Day Steps: 25 1440 Graduating Interval : 3 Days Interval Modifier - 100% VS 130% With 100% average review is about - 1. When studying for an exam, filtered decks allow you to, for. Interval modifier allows me throught marh to have. And that's it. ago. Hi everyone, I’m relatively experienced using Anki for its more basic features, but have really been having some issues with cards that don’t following their correcting learning intervals after I first see them. 8 and currently have a retention rate of 0. Basically, if I know the answer instantly I will always hit ‘easy’. Anki’s core algorithm was developed in 1988 by Piotr Woźniak; this was the "open source" SuperMemo 2 algorithm (SM-2). I have tried all the add-ons with different buttons - and dropped all of them as soon as i realized that the add-on Change order of review cards. Let intervalmodifier be the Interval Modifier, default intervalmodifier = 1, a number nominally around 1. At its default value of 100%, Interval Modifier does nothing. Using the computation that is provided in the manual, make small adjustments in the interval modifier to bring the true retention closer to your chosen target. Next day, each time you fail a card on 1440 interval, Flag it. Vanilla anki treats seeing the same card 3x (like with learning steps) as "3 cards" instead of one, I believe. Ease is an internal indicator of how easy you find a card. The Anki Manual describes essentially this same formula in the Deck Options » Reviews section, but there it is used to calculate a deck-wide interval modifier. The addon is intended for people who want to switch from default Anki settings to the setup recommended by Tatsumoto. This add-on prevent you from ease hell. So if Anki is suggesting 2 days for 'hard' you could try to set the interval modifier to 50% to knock it down to 1 day. if the rate is really low like 70% then either something is wrong with your cards or you need to make your. Please make sure you understand the options before changing them, as mistakes could. Search this forum and the official forum at anki. After that, use True reten by Maturity; change the '21' interval to 10; 30; 60; 90; 120; record the Retention for these ranges. Interval modifier: 100% Maximum interval: 40 days Hard interval: 120 % Reply reply shimmydoowapwap • I think the reason your seeing cards too often is your graduating interval is 1 day. The requestRetention of FSRS4Anki is equivalent to interval modifier. Interval modifier is 75% Maximum interval is 300 days for most of my decks, 356 for some of the ones where I think that I don't need to work as hard for (For example, if I actually started learning Spanish for real, I. 6. 109K subscribers in the Anki community. Hard interval 120% Interval modifier 191%. Hi there! I started using anki back in January and using it pretty much everyday. 5 * last interval. That’s called srs - spaced repetition software. 26. There are a lot of parameters and settings in Anki: Steps, Graduating Interval, Easy Interval, Starting Ease, Easy bonus, Interval Modifier, Steps and New Interval for lapses. Here are the same examples with an interval. js. Changing this number will customize all graduated card intervals as you are doing your Anki cards. Is that a possibility? Alternatively: Is there a way to automatically change the interval modifier for cards with intervals of >6m? I. This is worth its own blurb. interval modifier: 1. I was reviewing some of my older flashcards with an interval of > 1 month when I realised I wasn't retaining the info well. I found it extremely helpful and I am excited to try it. First of all, there’s something that’s called an Interval Modifier. Review cards. You can also change the interval modifier to something lower if you want to get more repetitions after the card graduates. 0. 4 months. Please see the manual before changing this option. My starting ease interval is 250; interval modifier for reviews is 100; and new interval for lapses is 20. If you want to cram, use this instead: Filtered Decks - Anki ManualI found an interesting article about adjusting the interval: eshapard. 5. I reviewed them 2019-03-28, they're scheduled for 2019-03-29 with an interval of 5 days. The add-on remembers the last state. Anki’s algorithm is what modifies the interval; it tries to predict the optimal time to review cards, optimizing for as few reviews as possible while still letting you remember the information. ago. Increasing your interval modifier should decrease your daily reviews in the short term. Aha. g. 5 * 40 = Interval Modifier 300%. I just want to know how Anki calculates the intervals in this . The unofficial subreddit for the flashcard app Anki. Of course, there are ways - through the other deck options parameters - to influence the algorithm if you're performance on the deck isn't what you want. Edit: I take everything back. An extra multiplier that is applied to all reviews. 95, we get an interval modifier of log (0. In my opinion this would be good for short term use in theory: New Cards: Steps: 30 1440 5760. Here are some interesting figures I want to introduce: In the number of due cards per day, FSRS reduced by 10% compared with Anki. 45 and I believe I had a interval. 00 It might also be important to adjust your daily limits. What’s weird is that they are showing correctly on the buttons, e. If I pick a 1d Good interval (defined by 1440 minutes) does Anki really wait 1440 min or does it wait till the new day begins. You're welcome to talk about all of the apps and services in the Anki ecosystem here, share resources related to Anki or spaced repetition in general, and help each other out with any questions you might have!. 80, though, for example, intervals will be generated at 80% of their normal size (so a 10 day interval would become 8 days). (1 day --> 3 days --> 9 days -->. This deck has about 12,000 cards and 98% of them are mature. I think changing mpderately Interval Modifier is a good way to shift the workload-retention balance, other settings can lead to unexpected outcomes. For instance, if we desire a retention rate of 0. So the next Good interval thereby should be: 8 * 2,35 * 0,8 = 15,04, I get 15. Repeat 2 more times ( to get a bigger sample size); add the resuls. 875 * 2. Alternatively, you might look at adjusting your initial ease settings and interval modifier.