A weird little strengthened skill bug?
I was refreshing some skills tonight, and then completed a new lesson, when I realized a weird pattern. Each time I actually strengthened or acquired a skill, two additional skills would show up, completely unrelated!
Here is the last example that made me notice it:
I didn't even strengthen Abstract Objects 4.. I was doing a lesson.. and it had nothing to do with the bonus lessons. They showed up about 4 times just in the past hour, all with the same amount of progress bars. Has anyone else had this little odd bug?
It still happens. I thought this was normal, as once more than 5 skills were strengthened at the same time.
To me it makes perfect sense since the words were included in the previous skills, and it kind of works a bit like the summary of learnt words that appeared in the good old days before the redesign. :)
So what is the consensus:
- Is this a bug or a feature?
- Is it also normal when a review session doesn't strengthen a skill, e.g. when there aren't enough words to strengthen the overall skill?
Thanks for the information. I've also seen several confused users indicating that sometimes no skills are strengthened after a practice session, it has also happened to me. Mostly during timed practice. So what about the second question, is it normal or could it be indicative of a bug?
I got the same thing, and I think it is actually a feature, although it is a bit obscure.
I looked in the duolingo web-cookie, and I can see that Duolingo is running an experiment called: skill_practice_dependency_experiment, and I believe this is what causes this.
My best guess is that it works like this: If you strengthen a skill, and any of the earlier skills (the skills that the current skill "depends" on) in the tree have less than full strength, then they will show up after the practice session as a reminder.
I do however agree that it is less than obvious why those extra skills are being shown at the end of a practice session!
[EDIT] I missed the part about that you did not even strengthen Abstract Objects 4. Indeed there seems to be bug when you are not strengthening anything, I have just tested this, and I can confirm that this happens for me too! When I make a timed practice and only answer one (non-christmas related) question, then it will always tell me that I have strengthened Christmas.