How we verify every statistic

Every number on statfern passes the same four gates. A statistic that fails any gate does not get published, no matter how good it would look in a headline.

Gate 1: primary source

Each figure must trace to the institution that produced the data: a government agency, a peer-reviewed paper, an established research firm or a company's own published dataset. We do not cite other blogs, "listicles" or news summaries as sources.

Gate 2: the number must exist at the source

An editor opens the source page and confirms the figure appears there, with the same scope and year we quote. If a page says "37% of respondents" and a blog claims "most workers", we quote the 37% version.

Gate 3: context travels with the number

Every entry records the sample size, population and year. A survey of 400 gig drivers is not evidence about the whole workforce, and we say so on the page.

Gate 4: random re-check

Before a report is published, a random sample of at least 10% of its entries is re-opened at the source. If any sampled entry fails, the whole report goes back for re-checking.

Dates

Each report shows the date its data was last verified. When we update a report, the date changes because the data changed. We never touch a date just to look fresh.

What we do not do

  • We do not estimate figures and present them as measured data.
  • We do not mix survey years inside one claim.
  • We do not accept payment for changing a number. Paid placements, when they exist, are labelled.

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