The claim
E-E-A-T is not a single measurable ranking signal; it is a conceptual framework Google uses to align its systems with human quality judgements.
What the evidence shows
Google has repeatedly clarified that human rater scores are aggregate feedback used to test and refine ranking systems, not per-page ranking inputs. This means E-E-A-T should be treated as a target the algorithms approximate through many observable signals, rather than a dial that can be set directly.