So as I mentioned, that was a last-second Google tack-on at the end of my comment after I realized I couldn’t easily retrieve my old bookmarks. I had a large folder that came from reading textbooks from university presses on memory research and compiling anything I found relevant to my own process. What I was really looking for was the generation effect. The generation effect is:
a phenomenon whereby information is better remembered if it is generated from one’s own mind rather than simply read.
A meta-analysis showing just how robust this is:
The generation effect: a meta-analytic review:
The size of the generation effect across the 86 studies was .40–a benefit of almost half a standard deviation of generation over reading.
For a sloppy analogy: half an SD is like gaining about 15lbs or 100 points on the SAT.
Most studies use a particular kind of test to examine, but if you dig around you can find it being applied in one context after another. The reason I assumed any random study pulled would have some relevance is because I know there is study after study in context after context. And I do think it is relevant (even if it isn’t the most relevant kind of study I can point to) that people learn grammar faster when they output grammar compared to just reading grammatical sentences, because it supports the general phenomena, and shows yet another context where it applies; it seems to apply just about everywhere, the only caveats are when the desired output is impossibly hard (so maybe you shouldn’t have learners handwriting 頻繁 or 薔薇 on day 1), trivially easy (so maybe you don’t see as much difference when it comes to outputting versus recognizing 日), or outputting distracts from reading comprehension when they do this in tasks with narration. Besides, the people who are most adamantly against output are against it everywhere with the same arguments, so debunking it anywhere starts cracking that foundation.
not everyone says that
I’d be very willing to bet real money that most of the people who are handwriting are not doing it with an effective spaced repetition schedule because they’re thinking more about making the words on the paper look pretty and even than leveraging the generation effect to learn faster, and that it’s foregoing the massive benefits of SRS that slows them down. Sure, I don’t think outputting kanji is so powerful that it overrides how effective SRS is. But I’ve yet to see one person who did SRS with output that didn’t come out raving about it.
Anyway, I’m not here to try to argue, I’m here to try to help people, and I think this is something that can help people massively. We just need to be clear that you’ll approach this one way if your goal is “make people to do backflips when I write”, and another way to optimize learning.