Research
The science behind every claim.
We make strong claims about retention and outcomes. Every one ties to peer-reviewed research — collected here, with the deep dives and the papers.
Deep dives
Read the science library
Memory Science & Spaced Repetition
Why scheduling review before forgetting lifts long-term retention 30–40%.
Read the deep dive →Adaptive Diagnostic & Item Response Theory
How 24 adaptive questions pinpoint a learner as precisely as a 100-item test.
Read the deep dive →Confusion Pairs & Interleaving
The 43% retention boost from mixing related-but-distinct concepts.
Read the deep dive →All seven pillars
Memory, diagnostics, interleaving, misconception repair, calibration, tutoring, knowledge graphs.
Open the library →Reviewing us for a pilot?
We’re happy to share methodology, raw effect sizes, and references with your research team.