What is validity?

Validity means something works the way it’s supposed to, like a toy that does what you expect it to do.

Imagine you have a red ball and a blue cup. You think the red ball is for bouncing, and the blue cup is for holding water. If the red ball stays flat on the floor when you throw it, that’s not valid, it’s supposed to bounce! But if the blue cup leaks water everywhere, that’s also not valid, it's meant to hold water.

A valid toy does what it was made for. If your red ball bounces high when you throw it, that's valid, because it’s doing its job. It's like how your favorite blanket feels cozy, that’s valid too, because that’s what blankets are for.

But if your blue cup can’t hold water and spills everywhere, it's not valid anymore. It's like trying to use a spoon as a ladder, it doesn't work the way it should.

Validity is just about things working how they’re meant to, no magic, just real stuff doing real jobs! Validity means something works the way it’s supposed to, like a toy that does what you expect it to do.

Imagine you have a red ball and a blue cup. You think the red ball is for bouncing, and the blue cup is for holding water. If the red ball stays flat on the floor when you throw it, that’s not valid, it’s supposed to bounce! But if the blue cup leaks water everywhere, that’s also not valid, it's meant to hold water.