From the London Times (via GNXP):
We are about as smart as we're going to get, says IQ pioneer
Alexandra Frean, Education Editor
It is a common refrain, repeated in response to every new television reality show and every bumper crop of school exam results: society is dumbing down. Scientists have long argued the opposite, pointing to the now widely accepted “Flynn effect”, which shows that over the past century average IQ scores have improved across the developed world, irrespective of class or creed.
Now the man who first observed this effect, the psychologist James Flynn, has made another observation: intelligence test scores have stopped rising. Far from indicating that now we really are getting dumber, this may suggest that certain of our cognitive functions have reached — or nearly reached — the upper limits of what they will ever achieve, Professor Flynn believes. In other words, we can’t get much better at the mental tasks we are good at, no matter how hard we try. If we are to make any further progress, we will have to start exercising different parts of our brain, particularly the parts controlling language acquisition and empathy, according to Professor Flynn, an emeritus professor at the University of Otago in New Zealand.
In a lecture in Cambridge yesterday, he said that the study of intelligence has for too long been asking the wrong question: “The questions are not ‘Are we getting smarter?’ and ‘Are our children really smarter than we are?’ If the rise in IQ scores meant that we were smarter, that would mean our grandparents were dull and our great grandparents idiots, which is clearly not the case. The question should be, ‘Have certain cognitive skills risen?’ And the answer to that is yes.”
What accounts for our rise in intelligence test scores, Professor Flynn believes, is social and environmental changes that have given us the opportunity to exercise the kinds of skills that IQ tests measure. We increasingly fill leisure time with cognitively demanding pastimes, such as puzzles and computer games.
We have also developed a more scientific way of viewing the world. “In 1900 if you’d asked a child what do a dog and a rabbit have in common, they might have replied with a concrete answer like, ‘Dogs are used to hunt rabbits’. Today a child would be more likely to say, ‘They’re both mammals’. We classify things scientifically.”
Another factor in rising test scores concerned our ability to deal with complex abstract ideas. This is demonstrated in our ability to absorb abstract “shorthands” — for example the term “market” to signify laws of supply and demand.
Professor Flynn believes there is no reason to believe IQ gains will go on for ever. He points out that although gains are still robust in America, they have stopped in Scandinavia.