Evidence Quality
📋 What it is
Not all evidence is equal — strong evidence is relevant, reliable, and comes from a trustworthy source.
🗣️ Coach says
Weak evidence sinks a good claim. Ask three things: is it RELEVANT (about this claim)? RELIABLE (accurate, repeatable)? and from a TRUSTWORTHY source (an expert, not a random post)? One strong study beats ten rumours.
🧠 Memory hook
Good evidence is relevant, reliable, and from a source you can trust.
😂 Giggle
Why was the straw man such a bad debater?
It always fell apart under pressure!
😲 Whoa!
Courts rank evidence by strength — an eyewitness who saw clearly counts more than a “someone told me”, and DNA counts more still. Strength, not just quantity, wins cases.
⚖️ The claim on trial:
“Our school lunch is healthy.”
You're the judge. Deliver a verdict, pick the evidence that really matters, then reveal.
✓ Well-supported — Well-supported — the dietitian report and the ingredient list are relevant, reliable, trusted-source evidence; a taste opinion and a repeated rumour are not (volume isn’t reliability).
Weigh evidence by relevance, reliability, and source — not by how many times it’s repeated.
🧪 Try it! (2 minutes)
Find a claim online and rate its evidence: relevant? reliable? trusted source? Give it a 0–3 score.