О распределенной тренировке в сравнении с концентрированной (или зубрежке) см.: John Dunlosky, Katherine A. Rawson, Elizabeth J. Marsh, Mitchell J. Nathan, and Daniel T. Willingham, «Improving Students' Learning with Effective Learning Techniques: Promising Directions from Cognitive and Educational Psychology,» Psychological Science in the Public Interest 14 (1) (2013): 4–58.