Book
Rosetta Stone French Picture Dictionary, French Dictionary to Learn French Vocabulary and Phrases, Dictionary for Kids and Adults, French English ... Dictionaries) (English and French Edition)
Two parallel scores from 3 calibrated reviewers and 5 raw-average reviewers.
Z-normalized corrects for reviewer bias (every reviewer re-centered onto their personal scale). Raw average uses simple mean across the broader pool including stddev=0 reviewers.
Where this book sits
Z-normalized percentile · 5,285 ranked books
| Mean reviewer z-score | -0.273 |
|---|---|
| Calibrated raw-mean rating | 4.33 /5 |
| Broad raw-mean rating | 4.60 /5 |
| 90% CI-floor (z) | -1.223 |
| Reviewers (calibrated / broad) | 3 / 5 |
Summary
Rosetta Stone French Picture Dictionary, French Dictionary to Learn French Vocabulary and Phrases, Dictionary for Kids and Adults, French English ... Dictionaries) (English and French Edition) sits at the 22th z-normalized percentile across 5,285ranked books. The z-percentile differs from a raw star average because Rankquant subtracts each reviewer's personal baseline before aggregating — so a reader who rates everything 5 stars carries less weight than one who rates discerningly. Raw-average percentile is 27; the gap between the two measures how much bias-correction changes this title's standing. How percentiles are computed.
Pipeline applied to this title
The math, in this order
3 reviewers with rating variance re-centered onto a personal z-scale.
Mean z = -0.273. Broad raw mean = 4.60/5.
90% CI-floor = -1.223. Thin samples penalized.
Global 22.3. Z-track and raw-track ranked separately.
Similar percentile
