Testing oneself on material the same day or the next day after exposure is the most effective learning strategy.

“the best performance comes from being exposed to material what in this experiment they're called studying okay so they read a passage or they learn some math material or language material or music material or motor learning then they take a test very soon after even same day or next day and then there's a long delay and then they take the test”

“this business of putting the testing soon after exposure to new material is about offsetting the forgetting of that material”

“guess what's not going to be helpful walking out of class and getting immediately on to your phone we know that that probably inhibits your ability to remember the material because it's going to enhance forgetting because you do have this key opportunity right after being exposed to new material to help offset the forgetting by testing yourself on that material as soon as possible after being exposed to it”

“test yourself very soon after being exposed to material for the first time”

“the last group which performs worst they perform worse being exposed to material then there's a long period of time then you're tested on that material”