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How we score

What goes into the WtB Score, and why we make every signal relative.

Scoring diagnostics

What the WtB signals actually look like

Every maternity signal on its raw scale, drawn as its real distribution across all units. The question underneath: does the raw number tell a family anything, or does everything bunch into a narrow band where "80" is really just average?

The finding, up front

Patient survey scores span a narrow band, so a unit scoring 80/100 sits below the middle even though "80" reads as good. To separate good from great we score each signal relative to the observed spread — that's what these curves are for.

In the score today (experience) Collected but unused (clinical / MSDS) Normal curve (same mean & SD)

Distribution of every signal

Bars are the real spread across all units with data; the line is a normal curve fitted to the same mean and SD, so you can see how bell-shaped (or skewed) each one really is. The dashed line marks the median.

Three ways to make a signal relative

The same handful of raw survey scores, re-expressed. The raw column barely moves while the relative columns fan the units apart — that spread is what a family can actually act on.

Unit's raw PSS Raw / 100 Min–max Z-score Percentile
Min–max rescales the observed range onto 0–100. Z-score says how many SDs above/below the mean. Percentile says the share of units this one beats.