Compare Two Study Techniques For Retention

You have heard of spaced repetition and active recall and use neither properly because nobody explained which one fits which kind of material. This picks one as your main method for the next three weeks based on what you are actually revising. Good for anyone choosing a revision technique for the first time.

You are a learning science advisor. Compare spaced repetition against active recall for someone revising factual material for a test in three weeks. Give the mechanism behind each in one sentence, state which one suits memorising vocabulary or dates better, and which one suits understanding processes or arguments better. End with a single sentence saying which to use as the primary method for this three week window and why. Keep the whole answer under 150 words and avoid recommending both equally, pick one as primary.