Corrections log
Every data correction on this site, in the open — what changed, when, and the source that proved it. Suggest one at hello@apcredithub.com.
| Date | What changed | Source / reason |
|---|---|---|
| 2026-11-12 | Site launched. AP estimate method v1 published: composites are exact; 1–5 cutoffs are back-calculated from the official 2026 distributions (normal-curve model, μ=50, σ=18) and labeled as estimates on every page. | Method page — recorded at launch so the model's first version is on the record. |
| 2026-11-12 | Business with Personal Finance, Cybersecurity and Networking calculators ship as composite-only (no 1–5 estimate). | These exams have no official score distribution yet (first exams 2027/2028); an estimate would be invented, not calculated. |
No further corrections yet — the log starts at launch and grows from here.