Haha, good question, can I? (Not a scientist, or a teacher). I think we may be approaching the limits of my explaining skills now. Suddenly realised that it's one of those "I know what I mean but struggle to explain it" things. I just googled it and got an AI response that included the following examples:
- Falsifiable: "All objects fall to the ground." (Falsified if you find an object that floats up).
- Unfalsifiable: "There is an invisible, undetectable ghost in the room." (No test can prove this wrong because the ghost is "undetectable").
Proper science should be falsifiable, which doesn't mean there IS an example which disproves the statement that is being made about a scientific principle, but that there (theoretically) COULD be, if that makes sense. There's evidence to prove something, so there could be evidence to disprove it (and if such evidence was found, scientists would change their minds). Unfalsifiable things are ones that can't be proved in the first place, nor disproved, so not really scientific. That doesn't necessarily mean it's not true. I mean, I might have a memory that's totally accurate, but nobody can hook machine up to my brain and "read" it and prove that it is. My claims about my own thoughts and feelings are unfalsifiable. It doesn't mean they're untrue, but they lie outside the realm of science, as it stands. Different kind of truth. We can all believe that our ideas on moral / spiritual truth are right ("my religion is the truth"), but we have to accept that it lies outside the realm of SCIENTIFIC truth. Science is about proving things.
I don't think that's a brilliant explanation but it seems to be the best I can do. Help me out, science people.
What I was saying about IQ tests was that they're not, in my view, entirely scientific because they rely on some assumptions, which are not proven facts, about human intelligence and what intelligence actually IS and how best to measure it and so on and so forth. Because if intelligence means "the ability to understand / interpret / cope with the world you live in", that means different things in different times and places. And some IQ questions rely on prior experience / knowledge that you may or may not have already acquired (it does try to avoid that, but I don't think it's possible to entirely succeed; there's always going to be some cultural bias sneaking in). And because people and how they think can change over time, in response to culture, environment and all the rest (in a way, that say, the laws of physics or the behaviour of numbers do not). I started off commenting on how numbers / averages (any numbers, about anything) work, and then got derailed a bit when someone, I think, commented on IQ tests specifically and I threw in some caveats about possible problems with IQ testing. I'm definitely on firmer ground when thinking about the first one (that's just about numbers).
BTW, I only saw your question by chance when having another look at this thread. If you want someone to get the automated email to tell them someone's responded to them directly, either use the quote function or put an @ in front of their username.
Hope that helps at least a little bit.