Book
Sharpening Carving Tools for Beginners: Learn to Keep Your Knives, Gouges & V-Tools in Tip-Top Shape (Fox Chapel Publishing) The Ultimate Guide to Honing Techniques for Woodworkers and Woodcarvers
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 | +0.377 |
|---|---|
| Calibrated raw-mean rating | 5.00 /5 |
| Broad raw-mean rating | 5.00 /5 |
| 90% CI-floor (z) | -0.573 |
| Reviewers (calibrated / broad) | 3 / 5 |
Summary
Sharpening Carving Tools for Beginners: Learn to Keep Your Knives, Gouges & V-Tools in Tip-Top Shape (Fox Chapel Publishing) The Ultimate Guide to Honing Techniques for Woodworkers and Woodcarvers sits at the 71th 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 83; 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 = +0.377. Broad raw mean = 5.00/5.
90% CI-floor = -0.573. Thin samples penalized.
Global 70.9. Z-track and raw-track ranked separately.
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