Free · 10 questions · No login · CCA-F calibrated
Diagnostic.
10 hand-curated questions calibrated to mid-difficulty CCA-F. Two per domain. Most takers miss 2 to 4 - that's the point. Each wrong answer comes with a mental-model breakdown plus links to the Concept, Scenario, and Knowledge pages that explain it. Roughly 10 minutes. Anonymous; no account needed.
D1 27%D2 18%D3 20%D4 20%D5 15%Mixed: applied + edge-case
What happens next
After the 10 questions.
- Domain heatmap. Per-domain accuracy with weight % and a recommended Concept + Scenario for each.
- Per-question review. Every question expanded: your pick, the correct answer, why each distractor is wrong, and the mental model under test.
- Three pillar links per question. Concept, Scenario, and Knowledge slugs you can click straight from each wrong answer.
- Mock CTA. After the diagnostic, the 30-Q mock builds the full mental-model audit + 4-week study plan.