For
those of us who routinely read articles
about human behavior, it is always
interesting to see what a popular writer
selects from the range of human behavior
to focus on to write a popular
presentation of what otherwise might be
a boring statistical exercise to the
general public. Gladwell
groups his presentation into three
areas: The Advantage of
Disadvantages, The Theory of
Desirable Difficulty and finally The
Limits of Power. To interest
the reader, Gladwell begins each
discussion in the book by introducing us
to a person, such as Caroline Sacks, who
experiences the problem under discussion
and always seems to learn something from
the experience.
Like
any good author, the strongest part of
the book comes first. Part Two,
the theory of desirable difficulty
argues, for example, that dyslexic
individuals have an advantage over
normal people when they overcome
disadvantages. While individuals
with dyslexia have done well, none of
them, the author notes, would wish the
condition on others. In the third
section of the book it is argued that
the powerful face limits too, examples
being the British in Ireland, the Nazis
overcoming the resistance of a village
in France which set out to protect Jews
during the Nazi era, and how
individuals react to persecution.
The
main strength of the book is in what
Gladwell calls the advantage of
disadvantages. He begins with how
David beat Goliath as example of how the
weak can be strong. It seems that
David knew how to use a sling shot which
could throw a rock with the speed
approaching that of a modern
bullet. Thus David stayed away
from the giant Goliath and hit him in
the head with a high velocity
rock. Having no expertise in this
area, I, like most readers, will assume
Gladwell is correct. Strength is
in setting the agenda.
Gladwell then turns to educational
issues, such as coaching, optimal class
size and the issue of being a big fish
in small pond. He introduces us to
Carolina Sacks (a pseudonym) by first
telling us about French impressionism in
the 1860s in Paris. Painters such
as Pissaro, Cezanne, Manet, Monet and
others were having a hard time making a
living. Renoir was broke.
Art was regulated and shown yearly in
The Paris Salon, where realism was the
expectation. But impressionists
usually could not get accepted and the
exhibition hall was huge, meaning many
paintings could hardly be seen.
The answer was to set up a small
exhibition, called "The Salon des
Refusés," making the paintings there big
fish in a small pond. The Salon
des Refusés
was hugely successful.
It seems
that Caroline Stacks was a high
achieving student in high school
interested in science. She had
perfect grades and test scores.
She applied to highly-selective colleges
including Brown with the
University of Maryland being her safety
school. She enrolled at
Brown. No longer a big fish and a
small pond, Sacks got a grade of B
in Chemistry, which both Sacks and
Gladwell accept as a sign of
failure!! Why, neither explains,
but it leads to Sacks’ withdrawing from
science. Other examples are
provided. As Gladwell states:
What happened to
Carolina Sacks is all too
common. More than half of all
American students to start out in
science, technology, and math programs
(or STEM, as they are known) drop out
after their first or second
year. Even though a science
degree is just about the most valuable
asset a young person can have in the
modern economy, large numbers of
would-be STEM majors end up switching
into the arts, where academic
standards are less demanding and the
coursework less competitive.
That’s the major reason that there is
such a shortage of qualified
American-educated scientists and
engineers in the United States., p.
81.
Using the work of Elliot (et al. 1996),
Gladwell compares the proportion of each
class which gets a STEM degree compared
to the math SAT at Hartwick College and
Harvard University. Here is what
he presents for Hartwick:
Students at Hartwick College
STEM Majors
|
Top
Third
|
Middle
Third
|
Bottom
Third
|
Math SAT
|
569
|
472
|
407
|
STEM degrees
|
55.0%
|
27.1%
|
17.8
|
So
the top third of students with the Math
SAT as the measure earn over half the
science degrees.
What
about Harvard? It would be
expected that Harvard students would
have much higher Math SAT scores and
thus the distribution would be quite
different. Here are the data for
Harvard:
Students at Harvard
University
STEM Majors
|
Top
Third
|
Middle
Third
|
Bottom
Third
|
Math SAT
|
753
|
674
|
581
|
STEM degrees
|
53.4%
|
31.2%
|
15.4%
|
Gladwell states the
obvious, in italics, "Harvard has the
same distribution of science degrees as
Hartwick," p. 83.
Using
his reference theory of being a big fish
in a small pond, Gladwell asked
Ms. Sacks what would have happened if
she had gone to the University of
Maryland and not Brown. She replied,
“I’d still be in science,” p. 94.
The above
example is a sample of how Gladwell
brings forth what might be obscure data
in a popular format. In
short, the book is highly readable and
cites good sources for its
conclusions.
However…..
What is missing from the
book is the subject of the culture of
science and that of teaching
science. My parents were
both chemists. My father’s lament
was often, "They are driving them
[undergraduate students] out of
science." I attended a college
where the freshman chemistry course was
considered, correctly, a flunk-out
course designed to get rid of most of
the students. To major in
chemistry, you had to be invited by the
faculty, personally it was
thought. My father's take on that
approach was simple: the professors
wanted an easy life in the classroom
with class sizes limited to just a dozen
or so. They succeeded using the
excuse that only a few students were
smart enough to "be in science," and
that the small number of majors made
chemistry the best department on
campus. There was no room for a
person who got a C in
chemistry.
Sometimes
geology is a refuge for those who want to
escape the flunk-out courses in other
sciences. Attending a geology field
trip on the prospects for fracking in
North Carolina several years ago, there
were about 5 buses full of professional
geologists and senior state officials
moving from site to site. One leader
of the group addressed us from the back of
his Suburban. There was a custom
license plate. It read
"ROX4JOX." Everyone understood the
joke.
The
data presented by Gladwell does suggest
a student who really wants to do science
should pick a small college somewhere,
not Harvard, because most science
instruction even in low-prestige
colleges will focus on the few.
The culture of science instruction seems
universal, not limited to Harvard.
"The big pond takes really bright
students and demoralizes them," writes
Gladwell. Perhaps. But there
is a lot more going on here than just
the size of the student body. As
one professor of physics recently told
me, "I save lives." I asked "how?"
He responded, "By making sure the idiots
do not get into med school." This
is a true story. Thus culture
plays an important role in who succeeds
in science, not just an entry-level SAT
score. if you are a student in the
top of your class you will probably be
in science, regardless of the math
SAT. Just pick a group where you
will be in the top. Brown was not
a good choice for Caroline Sacks.
I
would high recommend Gladwell's David
and Goliath. Although he
tries to make evidence fit his theory,
the data he presents point out important
social trends which need to be
considered as policy matters.
Reference
Cited
Rogers
Elliott, A. Christopher Strenta, Russell
Adair, Michael Matier and
Jannah
Scott (1996). "The Role of Ethnicity in
Choosing and Leaving Science in Highly
Selective Institutions." Research in
Higher Education 37, 6:
681-709.