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gwern comments on Want to help me test my Anki deck creation skills? - Less Wrong Discussion
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Not inherent to the effect; you can get the spacing or testing effects without providing the right answer or measuring the response.
I think it's very inherent to the supermemo algorithm. Otherwise how does learning without spacing looks like?
I think this got derailed because gwern is trying to distinguish between the spacing effect the testing effect, and Supermemo/Anki. See gwern's literature review for clarification. In a domain where what counts as 'testing' isn't clear, perhaps basketball, then you might just try to used spaced repetition, which is what gwern is suggesting I think.
Space and testing effects are different, but work well together, and Anki/Supermemo are software that try to take advantage of these effects.
If only there were hundreds of studies listed in http://www.gwern.net/Spaced%20repetition#literature-review which demonstrate that there are many ways of spacing learning which don't exploit feedback like the SM algorithms demand...
If someone takes a weekly class that's teaching dribbling every monday, then you could call that "spacing learning". I don't think it's valuable to put that way of learning in the same mental category as Anki and Supermemo.
One of your studies says:
If you are looking at driblling or throwing free throws, I don't see a clearly distinguished testing from restudying.
Why not, when they're very similar and may be exploiting the same underlying neurological effects (we don't really know the basis)?
Begging the question? There no possible way to learn a skill that requires 10,000s of repetitions without spreading the practice over time. Out of the many ways that people train basketball you don't gain additional information when you get to know that someone learns basketball by learning on multiple days.
If someone tell you that he's learning vocabulary via SRS with my more narrow definition that tells you a lot about the way he learn it.
What on earth are you talking about? You can vary the spread over time - you can cram with 4 hours of practice on one day a week, or 1 hour a day for 4 days a week, and you can distribute a skill differently within sessions too in small random blocks or again cram all of one practice task into one time period.
I get the feeling you're not even trying to understand here.
As far as I understand you both of those methods would be in the same category of spaced repetition.
I just gave you 2 different ways, on different time-scales, that spacing could be applied to motor skills and to getting the most out of the 10,000s of repetition. If you visualize the spacing effect as being based on the forgetting curve, it should come as no surprise at all that you can demonstrate spacing on many time-scales (and my spaced repetition page includes citations dealing with intervals ranging from seconds to years).
Above studies suggest it is valuable.
Do judge whether that's true we need to find an agreement about what we mean with it.