According the the mysterious “Flynn Effect”, something is happening that shouldn’t be happening. Each generation is getting slightly smarter than previous generations, as measured by IQ.
The Flynn effect is a perplexing phenomenon for those who believe that IQ tests represent a true measure of human intelligence, as it would suggest that people today are in general considerably more intelligent than those of previous generations. Flynn himself does not believe this to be the case. It is conceivable that something about modern society is responsible, e.g the greater need for abstract thinking, presence of computers, more visually-oriented culture.
IQ scores are re-normalized periodically, such that the average score is reset to 100.
Flynn effect – Wikipedia, the free encyclopedia.
This effect has been under much doubt within the scientific community. That doubt, after further research, has pretty much evaporated. Researchers found that the effect not only exists, but it is accelerating.
The trend Flynn discovered in the mid-’80s has been investigated extensively, and there’s little doubt he’s right. In fact, the Flynn effect is accelerating. US test takers gained 17 IQ points between 1947 and 2001. The annual gain from 1947 through 1972 was 0.31 IQ point, but by the ’90s it had crept up to 0.36.
Theories exist as to why this is happening. One is that our diets have supposedly have improved, causing a gain in IQ. I don’t think diets have improved that much in the 20th century. We do seem to eat more, but eating more is probably not the cause.
My guess is that modern society, with all the gadgets we deal with, as well has video games ‚Äì are re-wiring our brains. Today, building a mental model of how a video game works, as well as working out spatial puzzles in those games – are things that humans did not spend hours doing decades ago.
I think that the complexity of the world is increasing, and people today are possibly using their brain in different ways. Think about the larger number of technological interfaces human minds need to work through in modern times, just to complete what we consider basic daily tasks.
We are dealing with logical interfaces to cell phones, TV remotes, gaming systems, new computer systems, website interfaces, and even computer interfaces in our cars. Our brains seem to be getting a good workout in logic and spatial skills just because of our more complex environment. With a more computerized environment, interfacing with computers probably gives kids more and more of the skills that would test well on an IQ test.