Comment by alkonaut
I have no idea what the actual science referenced here is on this but I'm sure whatever they used to convince people to spend that much money is based on science that isn't just "the tests go better" but actually "the learning is better".
And spaced repetition has been part of education since forever hasn't it. Yes it's slightly easier with a PDF. But you'd have to assume they thought of that too...
>I'm sure whatever they used to convince people to spend that much money is based on science that isn't just "the tests go better" but actually "the learning is better".
Likewise, I'm sure that science is weaker than it first appears.
I can point you to dozens of studies showing spaced repetition is robust and effective, across a wide variety of domains.
>[S]paced repetition has been part of education since forever hasn't it. Yes it's slightly easier with a PDF. But you'd have to assume they thought of that too...
In fact I only found out about spaced repetition near the end of high school, so no, I wouldn't call it "part of education since forever". In fact I consider the fact it isn't a topic we scream about from the hilltops and make it a known thing for students a great civilization-wide error. It seems closer to an open secret that was a lot less well known even just a decade ago.
It's also not "slightly" easier with a PDF, it's much easier. Individual cards that would take much longer to create by hand (image occlusions in particular) take less than a minute with software. There is a reason I insist upon using ebooks these days, paper books just can't compete with that kind of efficiency.