Film · 2015 · Films · 2010s
The Lazarus Effect
Scored from 184 calibrated IMDb reviewers, each re-centered on their own rating baseline before the title is ranked. Cohort: Films · 2010s (13,059 peers).
Summary
A team of medical researchers develops a serum intended to revive patients who have recently died. When one of the scientists is killed in a lab accident, her colleagues use the serum to bring her back, but she returns altered and exhibiting disturbing supernatural abilities tied to a dark place she experienced while dead.
Released in 2015, The Lazarus Effect is a horror, mystery and science-fiction film.
Rotten Tomatoes carries a separate audience for the same title, 538 of whom clear the calibration test. The calibrated figure is built from 184 reviewers whose rating history varies enough to place their own average. A broader pool of 185 reviewers with two or more reviews feeds the raw-average track instead. 13,058 other films from the 2010s form the cohort it is ranked inside.
How the score was built
We compare the reviewers of this title against every other title those same people reviewed. Each review is scored relative to the reviewer's own baseline — a 7/10 from a hard grader sits well above their average, while a 7/10 from a generous grader sits below theirs. Every reviewer then counts the same, so the result is a calibrated consensus rather than a raw average.
- Global percentile
- Where The Lazarus Effect lands against every title we rank.
- In-cohort percentile
- The same comparison narrowed to its cohort — titles of the same format released in the same decade. A 1970s film is judged against 1970s films, not against last year's streaming series. Ranked against Films · 2010s (13,059 titles).
- AI-adjusted percentile
- The same reviewer-normalized score, corrected for how much confidence the sample supports: thin samples are pulled toward the corpus average. Each title keeps the share n / (n + 53) of its measured distance from the average, where n is its calibrated-reviewer count, and the result is ranked on the same scale as the global percentile.53 is the median sample size across everything we rank. Here n is 184.
Cohort: Films · 2010s
