Health, Household & Baby
Master Massage SpaMaster Essentials Exotic Massage Oil, 8 oz. Pack of 4
Bias-adjusted across 26 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Health, Household & Baby.
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How the score was built
- Amazon ratings
- 26
- Raw star average
- 3.9 / 5
- Bayesian avg
- 4.21
- Reviewer-graph z
- -0.707
used for the Bayesian percentile
unadjusted Amazon mean
raw rating shrunk to the category prior
bias-corrected vs. each reviewer's baseline (0 qualifying)
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Same category · Health, Household & Baby
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