Method and sources
How we calculate
- Every rule comes from the source listed below and is explained on the calculator's page.
- The calculation runs in your browser; the page shows the working with your numbers.
- Results are rounded only when they are displayed.
How we check
- Every rule has test cases with values taken from its source.
- All tests run automatically before each release; if one fails, nothing is published.
- Every number in tables and examples comes from the same code as the calculator.
Sources
| Rule | Source | Verified on |
|---|---|---|
| The 100 questions of the classic test and the scoring (100 minus one point per item ticked) | The Rice Thresher, The Rice Purity Test (ricepuritytest.com) | |
| History of the test (1924 survey at Rice University, later Thresher versions) | Wikipedia, Purity test |
Found a mistake?
Email us the calculator, what you entered and the result you expected at contact@classicricepuritytest.com.