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AI Literacy · Stage 6

Quality of Evidence

A claim can sound sure, go viral, and still rest on weak evidence. Learn to ask what the evidence really is — how much, how careful, who from, and can you check it — and to match your trust to how strong it is.

✦ AI Literacy📘 Stage 6 · S6⏱ ~9 min🧒 Ages 10–12★ Free to start
I can judge the evidence behind a claim.
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Kavi the owl for AI Literacy
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Kavi Weighs the Evidence

A helper tells Kavi, very sure: "This juice makes you super smart — it went mega-viral and the company's advert says so!" Kavi slows down and asks the real question: what's the evidence? "A million shares is just popular, not proof. An advert comes from the seller, who wants me to buy it." Then Kavi finds a careful study of many people you can actually read — and it shows no such thing. "Aha — I don't judge a claim by how sure or how popular it sounds. I weigh the evidence: how much, how careful, who from, and can I check it?" Strong evidence wins — every time.

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What your child will learn

1Weak evidence vs strong evidenceEvery claim rests on something — but that 'something' can be strong or weak. Tap each card!
2How to judge the evidenceUse the same four moves on any claim. Step 3 is the big one — weigh the evidence by asking: how much is there, how careful was it, who is it from (could they gain?), can I check it, and is it even about the claim?
3Weigh the evidenceEach claim rests on one kind of evidence. Decide if it is strong or weak, then tap to check. Tap Next test for more.
4Strong evidence or weak?Each card is the evidence behind some claim. Which ones are strong? Tap a bin for each one!
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A peek inside

An AI tells me, sounding sure: 'Eating carrots gives you night-vision superpowers — studies show it.' How do I judge the evidence behind this claim?
I don't trust it for sounding sure. I ask: <b>what is the evidence?</b> It only says 'studies show' but names <b>no study I can find or check</b>. That is weak evidence. Carrots do have vitamin A, but no real study shows 'superpowers'. Until a careful, checkable study backs it, I treat the claim as weak.

Try this at home: What does it mean to <b>judge the evidence</b> behind a claim?

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Questions parents ask

+What does 'quality of evidence' mean?

Quality of evidence is how good the support behind a claim is. Strong evidence is careful, covers many fair cases, comes from a trusted source, and can be checked. Weak evidence is a single story, a guess, an ad from the seller, 'everyone says so', or a rumour you can't trace.

+How do you judge the evidence behind a claim?

Spot the claim, find what the evidence actually is, then weigh it: How much is there? How careful was it gathered? Who is it from and could they gain? Can you check it? Is it actually about the claim and up to date? Finally, match your trust to how strong the evidence is.

+Why isn't a confident or viral claim automatically true?

A sure tone is not evidence, and going viral is just popularity. A weak claim can still sound confident and be shared a million times, so you judge the evidence behind it, not the wording or the share count.

+Why is one person's story weak evidence?

One story is a single case. It can't show what is true for lots of different people or situations, so for a general claim you need many fair cases, a careful test, or sources you can check.

+What age is this 'Quality of Evidence' lesson for?

It is a Stage 6 lesson for roughly ages 11–12 in KAVI Academy's AI-literacy track, the top of primary and secondary-ready. It builds on earlier lessons about trusted sources, confidently-wrong answers, catching a convincing mistake, and checking provenance.

Ready to play and learn?

Start the free interactive lesson, or print the handout for screen-free play.

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Part of AI Literacy · Stage 6 · S6 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.