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Why this exists

A private psychological assessment costs somewhere between £150 and £1,500 depending on where you live and what you need. Waiting lists for the free equivalent run to months, and in many countries there is no free equivalent at all.

Meanwhile the instruments themselves (the PHQ-9, the GAD-7, the PTSD checklist, the attachment scales) were published in academic journals decades ago and are free for anyone to reproduce. They are not scarce. They are not secret. They have simply been placed behind interfaces that charge for access to something nobody owns.

So the people most likely to need a starting point are the least likely to get one, and they end up on sites that harvest their answers, or in a spiral of searching that ends inself-diagnosis by algorithm. That is the gap this fills. Not treatment. A clear, honest, properly explained starting point, for free, at 3am, without an account.

What your money actually pays for

There is no office and nobody draws a salary. The costs are small and specific, which means small donations genuinely cover them.

  • £3Serves roughly 10,000 assessments. Hosting is the main cost.
  • £12Covers a month of domain, bandwidth and the crisis-line verification we redo quarterly.
  • £60Funds the research time to add and properly source one new assessment.

What we will never do

These are the commitments the donations buy. If we ever break one of them, stop giving.

  • Never charge for an assessment, or put results behind a payment.
  • Never run advertising. It would cost us a dozen instruments and your privacy at once.
  • Never store, transmit or sell your answers. Scoring happens in your browser and stops there.
  • Never require an account, an email address, or a login to see your own results.
  • Never publish an instrument we do not have the right to publish.
  • Never state a fact without saying where it came from.

Why donations rather than ads

This is the part most people find surprising. Advertising would not just be distasteful on a page where someone has answered questions about self-harm. It would be legally disqualifying.

Around a dozen of the 41 assessments here are offered by their authors free fornon-commercial use only. Carrying a single ad makes the entire site a commercial use, and those instruments would have to come down the same day. Donations are what let us keep them up.

You can read exactly which instrument sits under which licence, including the ones we deliberately do not host.

Other ways to help, all free

Money is the least interesting way to support this.

  • Tell someone. The person who needs this most is usually not searching for it yet. They were told about it.
  • Report anything wrong. A broken crisis number, a mis-scored result, a confusing explanation. Tell us and it gets fixed.
  • If you are a clinician or researcher, check our scoring and our sources. We publish the interpretation logic precisely so it can be audited.
  • If you hold rights to an instrument and would let it be offered free to the public, that would open it up for everyone.

Where the money goes if there is ever too much

Surplus beyond running costs goes to adding assessments and translating the site. The largest barrier after cost is that almost all of this exists only in English. Nothing is distributed to anyone.

Who wrote this page

Psychometrics Today Team, Editorial team. Last reviewed 30 May 2026.

The assessments on this site were developed and validated by the researchers named in each page’s sources. Psychometrics Today administers them and explains what results mean, in plain language, with every factual claim traced to the study it comes from.

Reviewed for accuracy against the primary research it cites. Not reviewed by a clinician, and not a substitute for assessment by one.