Evidence
Built on decades of learning science.
Spaced repetition, retrieval practice, interleaving and deliberate practice aren't marketing terms. They're the best-evidenced instructional techniques we have. Theorise wires them into the core.
-
Ebbinghaus, H. (1885)
Über das Gedächtnis (Memory) ↗
Forgetting curve — motivates spaced repetition.
-
Roediger & Karpicke (2006)
Test-Enhanced Learning ↗
Retrieval practice via testing beats re-reading for long-term retention.
-
Cepeda, Pashler, Vul, Wixted, Rohrer (2006)
Distributed Practice in Verbal Recall ↗
Meta-analysis of 317 experiments: spaced practice outperforms massed.
-
Ericsson, Krampe, Tesch-Römer (1993)
The Role of Deliberate Practice ↗
Expertise needs effortful, feedback-rich, progressively harder practice.
-
Rohrer & Taylor (2007)
Shuffling Mathematics Problems Improves Learning ↗
Interleaving mixed problem types outperforms blocked practice.
-
Dunlosky et al. (2013)
Improving Students' Learning ↗
Practice testing and distributed practice are the highest-utility techniques.
-
Clark, Tanner-Smith, Killingsworth (2016)
Digital Games, Design & Learning ↗
Well-designed digital games improve learning vs non-game comparisons.
-
Sailer & Homner (2020)
Gamification of Learning — Meta-analysis
Small-to-moderate positive effects on cognitive, motivational, behavioural outcomes.
-
Lusardi & Mitchell (2014)
Economic Importance of Financial Literacy ↗
Documents the financial-literacy deficit and its lifetime cost.
Our product claims are skill-specific — we promise you'll get better at what we train, not a vague "smarter." That's the Simons et al. (2016) guardrail, and the reason Lumosity had to settle with the FTC for $2M in 2016. We'd rather be defensible than dramatic.