Took the survey. Somehow I’ve managed to lose a decent chunk of IQ over the past 15 years...
IIRC, some tests are designed to have a standard deviation of 24 rather than 15; perhaps the test you took 15 years ago was one of those, so that a 148 on that scale would correspond to a 130 on this one.
IQ does normalize with increasing age.
Also normalizes with decreasing age.
Took the survey. Somehow I’ve managed to lose a decent chunk of IQ over the past 15 years...
IIRC, some tests are designed to have a standard deviation of 24 rather than 15; perhaps the test you took 15 years ago was one of those, so that a 148 on that scale would correspond to a 130 on this one.
IQ does normalize with increasing age.
Also normalizes with decreasing age.