Isn’t a standard deviation for IQ 20 points or so? If so, what you’re saying is that you took a test 3 times and it gave pretty much the same results all three times.
That’s like getting different blood pressure readings at different times and dismissing the validity of blood pressure tests. I and other people can raise blood pressure with a thought. That doesn’t negate the value of the test, it just indicates one of its limitations.
It does. Simple but important things like sleep impact it hard.
I’ve had it assessed three times in a clinical context, and lowest was almost 10 points different than highest.
Isn’t a standard deviation for IQ 20 points or so? If so, what you’re saying is that you took a test 3 times and it gave pretty much the same results all three times.
That’s like getting different blood pressure readings at different times and dismissing the validity of blood pressure tests. I and other people can raise blood pressure with a thought. That doesn’t negate the value of the test, it just indicates one of its limitations.