
TV Mini Series · 2022 · TV Mini Series · 2020s
The Staircase
Two parallel scores from 193 z-qualifying reviewers and 200 raw-average reviewers. Cohort: TV Mini Series · 2020s (1,094 peers).
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. The 22-point gap is the rating-inflation signature for this title — discriminating reviewers liked it more than the casual crowd.
Where this title sits
Z-normalized percentile · 1,094 peers in TV Mini Series · 2020s
| Mean reviewer z-score | -0.061 |
|---|---|
| DB1 raw-mean rating | 5.60 /10 |
| DB2 raw-mean rating | 5.51 /10 |
| 90% CI-floor (z) | -0.179 |
| Reviewers (DB1 / DB2) | 193 / 200 |
Summary
An eight-part dramatization of the case of novelist Michael Peterson, whose wife Kathleen is found dead at the bottom of a staircase in their North Carolina home in 2001. The series follows the ensuing murder investigation, trial, and its prolonged aftermath, while also depicting the Peterson family's fracturing relationships and the documentary crew chronicling the case.
Pipeline applied to this title
The math, in this order
193 stddev>0 reviewers re-centered onto personal z-scale.
Mean z = -0.061. DB2 raw mean = 5.51.
90% CI-floor = -0.179. Thin samples penalized.
Global 44.6 / cohort 36.2. Z-track and raw-track ranked separately.
Cohort: TV Mini Series · 2020s







