Graphique 2024 Lighthouses Wall Calendar | 12” x 12” | Thick Paper | Home & Office Organizer | Large Monthly Grid | 3 Languages & Marked Holidays | 4 Month Preview Page for 2025

Two parallel scores from 4 calibrated reviewers and 13 raw-average reviewers.

62.3%

Z · Global

62.3%

Z · Cohort

65.7%

Raw · Global

65.7%

Raw · Cohort

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Two scores · one item

Z-normalized · global

62.3

Z-normalized · cohortpublication decade

62.3

Raw average · global

65.7

Raw average · cohortpublication decade

65.7

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

Z-normalized percentile · 5,285 ranked books

Mean reviewer z-score	+0.320
Calibrated raw-mean rating	5.00 /5
Broad raw-mean rating	4.92 /5
90% CI-floor (z)	-0.502
Reviewers (calibrated / broad)	4 / 13

Summary

Graphique 2024 Lighthouses Wall Calendar | 12” x 12” | Thick Paper | Home & Office Organizer | Large Monthly Grid | 3 Languages & Marked Holidays | 4 Month Preview Page for 2025 sits at the 62th 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 66; the gap between the two measures how much bias-correction changes this title's standing. How percentiles are computed.