Film · 1963 · Films · 1960s
Black Sabbath
Two parallel scores from 126 z-qualifying reviewers and 127 raw-average reviewers. Cohort: Films · 1960s (1,929 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 · 1,929 peers in Films · 1960s
| Mean reviewer z-score | +0.501 |
|---|---|
| DB1 raw-mean rating | 7.56 /10 |
| DB2 raw-mean rating | 7.57 /10 |
| 90% CI-floor (z) | +0.354 |
| Reviewers (DB1 / DB2) | 126 / 127 |
Summary
An anthology horror film directed by Mario Bava, hosted by Boris Karloff, presenting three tales of terror. 'The Telephone' follows a woman tormented by menacing calls, 'The Wurdulak' features Karloff as a patriarch returning to his family as a vampiric undead, and 'The Drop of Water' tells of a nurse haunted after stealing a ring from a dead medium.
Pipeline applied to this title
The math, in this order
126 stddev>0 reviewers re-centered onto personal z-scale.
Mean z = +0.501. DB2 raw mean = 7.57.
90% CI-floor = +0.354. Thin samples penalized.
Global 87.9 / cohort 83.7. Z-track and raw-track ranked separately.
Cohort: Films · 1960s
