What statistics support Fran Montemurro's claims about study effectiveness in achieving high exam scores?

The available content does not list specific statistics or research numbers tied directly to Fran Montemurro’s claims in those videos. The videos focus on evidence‑based methods like active recall, spaced repetition, and “study smart, not hard,” but without quoting particular studies or percentages.

To support these claims rigorously, one would normally look at:

1. Cognitive psychology research on active recall and spacing effects
2. Studies on metacognition, practice testing, and exam performance

Would you like a summary of key research findings (with stats) on active recall and spacing that align with Fran’s advice?