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Methodology

A transparent walkthrough of how every calculator on this site turns your raw inputs into a realistic predicted score.

Inputs

Each calculator gives you per-question precision: a counter for multiple-choice correct answers and an individual slider + −/+ control for every free-response question (FRQ), each capped at the actual maximum points awarded by the College Board, NYSED, or TEA.

Per-exam curve registry

Instead of one generic formula, we maintain a per-exam curve registry (src/data/curves.ts) modeled on the official released scoring worksheets. Each calculator always uses the most recent published curve for that exam.

AP composite scoring

AP exams use a weighted composite. Inputs are converted to a raw composite using the official multipliers, then mapped to a 1–5 score using the released cut-points:

composite = (MCQ_correct × MCQ_multiplier)
          + Σ (FRQ_score_i × FRQ_multiplier_i)

AP score = lookup(composite, thresholds[5,4,3,2])

SAT & ACT scoring

SAT and ACT use piecewise-linear interpolation across published raw-to-scaled anchor points (e.g., 0/5/10/15/…/54 raw → 200/230/290…/800 scaled). Section scores are scaled independently and summed (SAT) or averaged (ACT) to produce the composite.

Regents & STAAR

Regents (NYSED) and STAAR (TEA) use raw-to-scaled conversion charts published per administration. We interpolate between published anchor points to estimate the scaled score on a 0–100 (Regents) or performance-level scale.

Sources

Disclaimer

This site is independent and is not affiliated with the College Board, ACT Inc., NYSED, or TEA. AP® and SAT® are registered trademarks of the College Board; ACT® is a registered trademark of ACT Inc. Because curves shift each year, all results are estimates for self-study and planning, not official predictions.