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Her First Lie: A Thriller cover
global pct
27.4

Book

Her First Lie: A Thriller

Two parallel scores from 8 calibrated reviewers and 8 raw-average reviewers.

27.4%
Z · Global
27.4%
Z · Cohort
21.7%
Raw · Global
21.7%
Raw · Cohort
Two scores · one item
Z-normalized · global
27.4
Z-normalized · cohortpublication decade
27.4
Raw average · global
21.7
Raw average · cohortpublication decade
21.7

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-0.175
Calibrated raw-mean rating4.50 /5
Broad raw-mean rating4.50 /5
90% CI-floor (z)-0.756
Reviewers (calibrated / broad)8 / 8

Summary

Her First Lie: A Thriller sits at the 27th 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 22; 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

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

02
Aggregate

Mean z = -0.175. Broad raw mean = 4.50/5.

03
CI-floor

90% CI-floor = -0.756. Thin samples penalized.

04
ECDF percentile

Global 27.4. Z-track and raw-track ranked separately.

Similar percentile

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