You learned biostats once. Then you forgot it. Then you needed it.
50+ case-based challenges. 1,000+ board-style questions. A spaced-repetition scheduler (FSRS-6) that catches you right when you're about to forget.
Built for residents preparing for boards, MPH students mastering core methods, and early-career researchers shoring up methodology before their next manuscript.
10 questions · ~5 minutes · no signup · Pro from $9/mo
Teaching a course or training a cohort? Talk to us about institutional access →
Biostatistics researcher & methods educator
Every question, deep dive, and citation is personally authored and method-categorized — not paraphrased from another QBank.
Every answer is graded, timed, and scheduled. The FSRS-6 engine picks exactly when you see each concept again.
Active recall, spaced repetition, and context-rich cases — not another passive video course.
Each case sets a scenario — critique a manuscript, advise a resident, design an RCT. Questions live in context, so the methods feel like tools, not trivia.
After every answer, grade yourself Again / Hard / Good / Easy. The FSRS-6 scheduler — a research-tuned successor to SM-2 — picks exactly when each card comes back, so you review the things you're about to forget, not the things you already know.
Every question links to intuition, formula, assumptions, pitfalls, and primary-literature reading. Learn the why, not the memo — and defend it in journal club next week.
Review-day streaks, perfect-run badges, and a per-method mastery panel that shows how confidently the scheduler thinks you know each topic. Gentle gamification — it rewards consistency, not grinding.
Three audiences, one common problem: the biostats you need to pass, publish, or teach isn't the biostats most courses actually cover.
Boards, USMLE, journal club, your first paper. Learn the actual methods examiners test — not a vague tour of "what statistics is."
Qualifying exams, methods coursework, thesis defenses. Work through survival, mixed models, causal inference with cited sources and worked logic.
Shore up methodology before your next manuscript, grant, or peer review. Understand when a mixed model helps and when a GLM is enough.
Each of those teaches part of the job. BioStat Quest stitches them together — context, practice, retention, and reasoning — into a single loop.
Free covers the foundational arc of every branch. Pro adds the AI tutor, full hint ladder, unlimited exams, and the Statement of Competency. Cancel anytime.
Foundational arc of every branch. No credit card.
Or $60/year (save $48 — 44% off)
Billed via Lemon Squeezy · cancel anytime
Bulk seats, syllabus-aligned collections, instructor dashboard with per-branch accuracy and per-student status. One invoice, cohort-wide access.
Free covers the foundational arc of every branch — the first cases per branch, the FSRS-6 scheduler, layer-1 hints, the AI tutor (5 questions/week), 2 timed exams per month, and the top-3 misconception ledger. No credit card to start. Pro unlocks the full catalog, the unlimited AI tutor, the full hint ladder (layers 1–3), unlimited exam mode with branch breakdown, the printable Statement of Competency, and the full per-tag misconception drill-down. Institutional plans add bulk seats and an instructor dashboard.
Every question, deep dive, and citation is personally authored by Selçuk Korkmaz, PhD — a biostatistics researcher and author of several R packages on CRAN. Content is method-categorized and sourced from primary literature, not paraphrased from another QBank.
No. The diagnostic and every case work in guest mode — progress is saved locally. Sign in only when you want to sync across devices or join the leaderboard.
Yes. Everything runs in the browser on iOS, Android, and desktop. Nothing to install. The R Lab runs R in the browser via WebR — even that works on a phone, though a laptop is nicer for code.
A case is ~15 minutes. A daily review session is 3–8 minutes once the scheduler picks up. Most users find 15 min/day over 4–6 weeks is enough to feel fluent before an exam or journal club.
Assign cases as structured homework, route students to method deep-dives when they stumble, and get a class-level view of where the cohort is strong — and where it's not. Institutional plans include bulk seats, syllabus-aligned collections, and an instructor dashboard.
Try the free diagnostic — ten questions, ~five minutes, no signup. Or grab Pro from $9/month for the full case library, the FSRS scheduler, and every method deep-dive.
Free tier covers the foundational arc of every branch. Pro adds the AI tutor, full hint ladder, unlimited exam mode, and Statement of Competency. No credit card to try.