Understanding Scaled vs. Raw Scoring
Standardized exams like the ParaPro do not report raw percentages because different test editions may vary marginally in question difficulty. By converting your raw total (the number of questions answered correctly out of 90) into an official scaled score between 420 and 480, ETS ensures that scores are mathematically equivalent across different test dates and locations.
Official Raw-to-Scaled Score Conversion Matrix
The table below demonstrates approximate scaled score projections based on total raw correct responses (out of 90 operational questions):
| Raw Score (Correct / 90) | Raw Accuracy (%) | Projected Scaled Score | National Status |
|---|---|---|---|
| 85–90 | 94%–100% | 476–480 | Exceeds All 50 States (Top 5%) |
| 75–84 | 83%–93% | 468–475 | Passes All 50 States (Top 15%) |
| 65–74 | 72%–82% | 461–467 | Passes 48+ States (FL, IL, TX, CO) |
| 58–64 | 64%–71% | 456–460 | Passes Median States (OH, NJ, MD, VA) |
| 50–57 | 55%–63% | 450–455 | Passes Entry States (DE, LA, SD, WY) |
| Below 50 | Below 55% | 420–449 | Needs Review (Study Recommended) |
Subtest Contribution to the Total Score
Each of the three subtests contributes equally to your overall score:
- Reading: 30 questions (approx. 33.3% of total score)
- Mathematics: 30 questions (approx. 33.3% of total score)
- Writing: 30 questions (approx. 33.3% of total score)
Unlike some multi-battery teacher exams, the ParaPro does not require you to pass each subtest independently. Your qualifying status is determined entirely by your composite scaled score. A strong performance in Reading and Writing can compensate for a slightly lower score in Mathematics, or vice versa.
Actionable Practice Resources
Full 90-Question Diagnostic Exam
Test your actual score under real 150-minute exam conditions with instant grading.
State Passing Scores
View required qualifying benchmarks for all 50 states and territories.
Registration & Test Day
Learn how to register on ETS, Prometric vs at-home test rules, and test fees.
Frequently Asked Questions About Scoring
How is the ParaPro scaled score calculated from raw answers?
Your raw score (0–90) is converted to a scaled score (420–480) through statistical equating. Each correct question contributes approximately 0.67 points above the base score of 420.
Is there a penalty for wrong answers on the ParaPro test?
No. There is no deduction for incorrect answers. Your score is based solely on total correct responses, so always answer every question.
What raw score do I need to pass in most states?
To achieve a typical state passing score of 456 to 460, candidates generally need approximately 58 to 65 correct responses out of 90 (65%–72% accuracy).
Do I need to pass each subtest (Reading, Math, Writing) separately?
No. ETS does not require individual subtest passing scores for the ParaPro Assessment. Your state or school district evaluates solely your total composite scaled score (420–480).