3.A Claims of Fact, Value, and Policy

Every claim makes a promise about how it will be defended, and that promise depends on what kind of claim it is. A claim of fact says something is measurably true or false: the river's nitrate level, the number of closures last year. It gets settled by an instrument, a record, or a count, not by opinion. A claim of value says something is good, bad, admirable, or shameful, and that judgment only lands if writer and reader already share a standard for what counts as a disgrace or a success. A claim of policy says someone should do something, and it owes the reader three things at once: proof that a problem exists, proof of what's causing it, and proof that the proposed fix would actually work.

The three types stack in a predictable way inside an argument. Writers often open with a fact to earn trust, pivot to a value judgment to make the fact matter emotionally, and land on a policy claim asking for action. Confusing the types wrecks the defense: citing a measurement when a reader wants a shared standard, or supplying a cause without ever showing the fix works, leaves the real burden unmet. A thesis built on several subclaims usually mixes these types deliberately, using fact to ground value and value to motivate policy.

This sits right next to the work of finding a thesis, because the thesis is often a policy or value claim that the rest of the essay must support with exactly the right kind of evidence. Misjudging the claim type means misjudging what evidence will actually satisfy a skeptical reader.