How HannahRev Scores Work

Every score on HannahRev is calculated, never typed in. That makes scores reproducible: the same measurements always produce the same score under the same methodology version.

Step 1: measurement to metric score

Each scored measurement has a worst and a best anchor. A result at the worst anchor scores 0, a result at the best anchor scores 10, and anything in between is placed linearly. Results beyond the anchors are capped. Yes/no features score 0 or 10.

Step 2: metric scores to test scores

A test such as Response Time combines its metric scores using fixed weights. When a test does not apply to a product, for example local dimming on an OLED, it is marked Not applicable rather than scored zero.

Step 3: test scores to usage scores

Usage scores weight tests by how much they matter for a specific use. Tests that are not applicable are removed and the remaining weights are rescaled, so a product is never penalised for lacking a feature it does not need.

Step 4: the overall score

The overall score is the average of the four usage scores. It is a starting point for comparison; the usage score that matches how you will use the monitor is always the better guide.

Scores are only comparable within the same category and methodology version.