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Large Print Crosswords #1 cover
global pct
78.3

Book

Large Print Crosswords #1

Two parallel scores from 3 calibrated reviewers and 5 raw-average reviewers.

78.3%
Z · Global
78.3%
Z · Cohort
83.1%
Raw · Global
83.1%
Raw · Cohort
Two scores · one item
Z-normalized · global
78.3
Z-normalized · cohortpublication decade
78.3
Raw average · global
83.1
Raw average · cohortpublication decade
83.1

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

0255075100

Z-normalized percentile · 5,285 ranked books

Mean reviewer z-score+0.407
Calibrated raw-mean rating5.00 /5
Broad raw-mean rating5.00 /5
90% CI-floor (z)-0.543
Reviewers (calibrated / broad)3 / 5

Summary

Large Print Crosswords #1 sits at the 78th 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

01
Z-score per reviewer

3 reviewers with rating variance re-centered onto a personal z-scale.

02
Aggregate

Mean z = +0.407. Broad raw mean = 5.00/5.

03
CI-floor

90% CI-floor = -0.543. Thin samples penalized.

04
ECDF percentile

Global 78.3. Z-track and raw-track ranked separately.

Similar percentile

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