Film · 1982 · Films · 1980s
The Slumber Party Massacre
Two parallel scores from 172 z-qualifying reviewers and 174 raw-average reviewers. Cohort: Films · 1980s (3,141 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.
Where this title sits
Z-normalized percentile · 3,141 peers in Films · 1980s
| Mean reviewer z-score | -0.185 |
|---|---|
| DB1 raw-mean rating | 5.84 /10 |
| DB2 raw-mean rating | 5.89 /10 |
| 90% CI-floor (z) | -0.311 |
| Reviewers (DB1 / DB2) | 172 / 174 |
Summary
A high school senior hosts a slumber party at her home while her parents are away, inviting her teammates from the basketball team. As the girls settle in for a night of fun, an escaped mental patient wielding a power drill stalks the neighborhood and begins picking off victims one by one.
Pipeline applied to this title
The math, in this order
172 stddev>0 reviewers re-centered onto personal z-scale.
Mean z = -0.185. DB2 raw mean = 5.89.
90% CI-floor = -0.311. Thin samples penalized.
Global 34.5 / cohort 32. Z-track and raw-track ranked separately.
Cohort: Films · 1980s
