8-16-2001: There's an earth-shaking physics
news release tonight: evidence that the fine structure
constant (and perhaps other fundamental physical constants) differed
in the distant past from their present-day values by about one
part in 100,000. This news is being rviewed very cautiously because
of its bone-jarring implications.
Dan
Thompson has finished his "Sherlock Holmes Adventure
on the Red Planet"
story. As you'll soon see, Dan is an accomplished author, illustrator,
and much more. His stories on his "Mars" website are
only the tip of the iceberg.
I thoroughly enjoyed "Sherlock Holmes
Adventure on Mars". To me, it seems to be well-written, and
quite as good as "The Seven-Percent Solution".
5/12/2001:
Since we now know that infants are born with many more neurons
than they will ultimately retain, and since we also suspect that
areas of the brain can be expanded through continual "stretching",
there's a theoretical basis for the idea that it might be possible
to increase intelligence with effort over time. At the same time,
the retarded must have been the recipients of some intense, presumably-unsuccessful
interventions aimed at boosting their brainpower.
The Milwaukee
Project was operated from 1966 to 1973 with 17 children born into
inner-city environments to mothers whose IQ's were 75 or below,
plus 18 similar children who were used as controls. The founder
and director of the program once quipped that compared to the
cognitive development regimen provided in the Milwaukee Project's
Stimulation Center, the childhood environments of such famous
prodigies as John Stuart Mill and Sir Francis Galton appear educationally
deprived. The treatment program ended when the children entered
first grade at age 6. At that time, the average IQ difference
between the two groups was 32 points, with an average IQ in the
17-child test arm of about 119, compared to an average IQ in the
18-child control arm of 87. However, the scholastic aptitude and
achievement test averages of the test group were barely superior
to those of the control group, and soon reached parity with it.
After a few years, both groups performed at an IQ level of about
80 in the actual classroom environment, and on scholastic achievement
tests. The researchers' conclusion was that they had been "teaching
to the test", and that the gains were illusory rather than
real. (Dickens and Flynn are now suggesting that perhaps social
factors and removal of the children from their stimulating early
environment may have been the reason their gains didn't become
more meaningful and more durable.)
A similar study
was conducted in the form of the Abecedarian Early Intervention
Project at the University of North Carolina in 1972. The average
IQ of the mothers was 84. The program lasted for five years. This
program seems to have been more effective, with a seemingly meaningful
IQ difference of about 5 points at the age of 15. This 5-point
IQ differential was accompanied by corresponding improvements
in scholastic achievement on the part of the test group versus
the control group.
Still, there are
no monumental prodigies springing from these efforts. Of course,
it must be remembered that the all-important contributions of
parents and home-life that would have occurred in the fostering
of a William Sidis or a John Stuart Mill wouldn't have been present
in these day-care experiments. Also, they both ended when school
began.
It may be that,
as in other aspects of inheritance versus environment, there are
sizable differences in innate characteristics, and that, given
equal effort, some will be much brighter than others, just as,
given equal effort, some will be much better baseball pitchers
than others. However, athletic skills are more a function of mental
and nervous system development than they are of innate athletic
capability (recognizing that someone 5' 4" tall probably
won't make a good linebacker or pitcher). Perhaps the enormous
improvements in athletic performance registered by today's children
is indicative of corresponding enormous improvements in the motor
centers of their brains. The magnitude of the Flynn Effect demonstrates
that the average individual can be a lot brighter than they were
in 1880. One "factoid" that has always interested me
is the fact that in a study of identical twins separated at or
near birth, the greatest disparity in adult IQ was 26 points,
between one twin who was a New York City schoolteacher and the
other twin, who was an Iowa farmwife.
Two interesting
discussions of the characteristics of the gifted are available
here. One, "A
Study of 241 Profoundly Gifted Children," by Dr.
Karen Rogers, summarizes the results of a study of 241 profoundly-gifted
children with ratio IQ's ranging from 160 to 237+. The other,
by Dr. Linda Silverman, is entitled, "Different
Worlds at the Extremes".
5/11/2001: There have been
many attempts to create "superkids" over the years.
I think that some of them may have been successful. The conventional
wisdom is that children like John Stuart Mill, Billy Sidis, Norbert
Wiener, etc., had exceedingly good genes and just happened to
be the sons of fathers who pushed their children. Supposedly,
there are hundreds of thousands of other fathers who also pushed
their children, but whose children lacked the genetic endowment
to respond*. What are the odds that Boris and Sarah Sidis would
set about to create the (perhaps) smartest child in history,and
to actually produce the (possibly) smartest child in history not
because of anything they did or didn't do, but because of their
genetic legacy? And if that seems acceptable to you, how about
Norbert Wiener and John Stuart Mill? But the problem with this
is that we need more than hundreds of thousands... we need millions.
In the case of William Sidis, if estimates of his intelligence
are even remotely correct, he's impossible. His adult (ratio)
IQ has been estimated at 250 to 300. The highest IQ that could
be expected in the United States would be something like a ratio
IQ of about 230
to 240, corresponding to a deviation IQ of 190 to 193.
If we find any IQ's over that, then (I should think) we have to
begin to reevaluate our concepts of inherited IQ. In other words,
among children, ratio IQ's above 240 would seem to me to be a
sign that other mechanisms are at work besides pure inheritance.
And Of course, spurts in rates of mental development and childhood
stimulation that will temporarily boost IQ might also distort
childhood test scores. However, that wouldn't account for adult
ratio IQ scores above the 230 to 240 level (deviation IQ of 190
to 193). William Sidis' adult IQ has been estimated by Abraham
Sperling, the Director of New York City's Aptitude Testing Institute,
at "250 to 300". Note that this would have been a ratio
IQ, since deviation IQ's were undefined in the 40's. (Note also
that Leta Hollingsworth searched for years in New York City and
elsewhere to find her 12 children above 180 IQ.) It's conceivable
that Dr. Sperling might not have encountered other individuals
in that range. Dr. Spreling evaluated William's record after he
died. But it's also clear that he concluded that William was head
and shoulders above the 5,000 individuals whom Dr. Sperling had
tested. An adult ratio IQ of 240 falls at the upper bound of the
range of expected log-normally-distributed IQ's in the United
States. If William Sidis had an adult IQ much above this value,
then I should think that this would argue in favor of James Flynn
and William Dickens' recent model that underscores the role of
mental exercise enhancing the mind.
The bottom line? I suspect
these guys succeeded, albeit at great emotional cost to their
sons, but in the emotionally charged stampede to discourage such
parental interventions in children's lives, a very important chapter
in the heredity-versus-environment debates may have been unscientifically
expunged. Now it's time to revisit this topic.
And yet... and
yet, there's the story of Y Y was adopted shortly after birth.
His foster-arents must have been taken aback when he began to
pick letters off billboards at 9 months. His parents bent over
backward to be sure that they didn't push him because of all the
ugly stories of what has become of child prodigies who were pushed
by their parents. By 15 months, he was reading, and was reading
French at 3. It's hard to attribute such a happening to anything
other than genetically-conferred intelligence. This would seem
to be a case of "genius will out".
I realize that
a great deal of meticulous psychometric research supports current
concepts of IQ and of g.