Changes

Choosing optimal interval (day, month) for next review after seeing answer. Also compared against ML model's recommended amount.   

Choosing optimal interval (day, month) for next review after seeing answer. Also compared against ML model's recommended amount.   

Judgement of learning could be after cue (question) or answer. Delayed, cue only, JOL produced highest correlation with actual recall. If answer is added though, the effect goes way down. Worse still, study decisions are not better than only rereading. This seems to be because users do not realize they learned because of last test.<ref>Kornell, Nate, and Matthew G. Rhodes. "Feedback Reduces the Metacognitive Benefit of Tests." ''Journal of Experimental Psychology: Applied'', vol. 19, no. 1, Mar. 2013, p. 1. </ref> Metacognitive.

Judgement of learning could be after cue (question) or answer. Delayed, cue only, JOL produced highest correlation with actual recall. If answer is added though, the effect goes way down. Worse still, study decisions are not better than only rereading. This seems to be because users do not realize they learned because of last test.<ref>Kornell, Nate, and Matthew G. Rhodes. "Feedback Reduces the Metacognitive Benefit of Tests." ''Journal of Experimental Psychology: Applied'', vol. 19, no. 1, Mar. 2013, p. 1. </ref> Metacognitive. Making JOLs also increases memory of items, maybe. 

== References ==  

== References ==