Completing strengthening exercise doesn't change the strength bar.
Today 3 of the 5 strengthening exercises I completed didn't announce that I had strengthened the subject at the end and didn't move the strength bar. Is this a bug or a feature?
This should tell you everything you need to know about strengthening:
I hope it helps. As the others said, sometimes it just needs a bit more work to make a skill strengthen. I sometimes feel Duolingo is being slightly harsh, but after 130 days of strengthening experiments (see link), I can assure you that the stuff I know well doesn't come up very often, and the things that do come up are the ones I really need more practice on. Trust The Owl. :)
Thanks, Moomingirl. A lot of good information in that post and on Greg's blog. I still have a couple of questions, if you have a minute:
1) Does the rate of word/skill weaking increase after you finish a tree?
2) Is it possible to complete a skill-specific strengthening exercise without increasing the strength bars for that skill? (Maybe by using hints too often or failing too many of the questions.)
1) I don't think so. I haven't looked into the technicalities of how it works, but I think the increase you are seeing is just down to the fact that you now have more words decaying, simply because you have learned more words. Also be aware that if you rushed to the end of your tree without doing a lot of strengthening, that will be affecting your decay rate too. I'm not familiar with the Irish tree, but level 12 seems pretty low to me for you to have finished. I would guess just from that, that you haven't done a huge amount of strengthening exercises as you have gone through.
2) Absolutely. You will see this especially in the larger skills, with 8+ lessons. I think they usually took me two strengthens to get an increase of one strength bar, and that was was with few wrong answers, and no using hints. If you had a bad strengthen (25+ questions) and used the hints a lot, I imagine it could take three or more before you see an increase in your strength bar.
Each time you get an answer correct, the decay rate will increase. I can honestly say at this stage in the experiment (bearing in mind the first 91 days were not ideal, as we were testing 'general strengthening', not skill specific), my tree is becoming pretty stable, and only my weak skills keep popping back up for review. As indeed they should. ;)
Thanks again. Great information and insight.
FYI, I finished the tree at level 12 mostly because I started at level 9 and have moved quickly through the course, so the entire tree hasn't provided enough XPs to get any higher. I can't imagine ever getting to level 25 unless an Immersion module gets added for the Irish course. (Fingers crossed.)
I have been doing at least 3 strengthening exercises every day, pretty much from the beginning. Now that I've completed the tree I am averaging 5-7 strengthening exercises daily. From the links you've provided (and the links off of them) I think I'll get the tree stabilized soon enough.
You've done more strengthening than I had expected. Just focus now on getting through your strengthens with as few errors and peeking as possible.
You should find soon enough that the decay rate slows down, and you'll be more solid in your knowledge. :)
It can happen if you make mistakes, or if the strength bar was just about to weaken even further. 3/5 is a bit harsh, but just hit the same skills again - and show them who's boss!
Thanks for the reply. I've never run into it this until recently. I finished the tree for this course last week. I wonder if the mistake-o-meter gets cranked up after you've done that? At any rate, it's a de-motivating feature, if that's what it is. A system should always reward a user for their efforts. Showing no response after completing something doesn't make me want to work harder. It makes me want to go elsewhere. I've done the course, I don't need a stingy system giving me a hard time.
Well, the system can't reward you for your efforts if the efforts weren't sufficient to get the reward. The strengthening system might be a little opaque, but there is a threshold for a skill to be strengthened and sometimes you just don't get there. The strength metric would lose a fair bit of its potency were Duolingo to reward you every single time just because you made the attempt. The point is to ACTUALLY get you over the finish line, not make you think you're already there.