I've always been intrigued by the subject of intelligence. As a child my mother would refer to me as "smart," but I quickly noticed that all parents refer to their children as smart. In time I would discover that all children are not smart, just as all babies are not cute. If that were the case, we'd have a world full of beautiful, smart people - which we don't.
Some of us are smart; but not as smart as we think, and others are smarter than they seem, which makes me wonder, how do we define smart? What makes one person smarter than another? When do "street smarts" matter more than "book smarts"? Can you be both smart and stupid? Is being smart more of a direct influence of genetics, or one's environment?
Then there are the issues of education, intelligence and wisdom.
What does it mean to be highly educated? What's the difference between being highly educated and highly intelligent? Does being highly educated automatically make you highly intelligent? Can one be highly intelligent without being highly educated? Do IQs really mean anything? What makes a person wise? Why is wisdom typically associated with old age?
My desire to seek answers to these questions inspired many hours of intense research which included the reading of 6 books, hundreds of research documents, and countless hours on the Internet; which pales in comparison to the lifetime of studies and research that pioneers in the fields of intelligence and education like Howard Gardner, Richard Sternberg, Linda S. Gottfredson, Thomas Sowell, Alfie Kohn, and Diane F. Halpern whose work is cited in this article.
My goal was simple: Amass, synthesize, and present data on what it means to be smart, educated and intelligent so that it can be understood and used by anyone for their benefit.
PRENATAL CARE
With this in mind, there was not a better (or more appropriate) place to start than at the very beginning of our existence: as a fetus in the womb.
There is mounting evidence that the consumption of food that's high in iron both before and during pregnancy is critical to building the prenatal brain. Researchers have found a strong association between low iron levels during pregnancy and diminished IQ. Foods rich in iron include lima beans, kidney beans, pinto beans, spinach, asparagus, broccoli, seafoods, nuts, dried fruits, oatmeal, and fortified cereals.
Children with low iron status in utero (in the uterus) scored lower on every test and had significantly lower language ability, fine-motor skills, and tractability than children with higher prenatal iron levels. In essence, proper prenatal care is critical to the development of cognitive skills.
COGNITIVE SKILLS
Cognitive skills are the basic mental abilities we use to think, study, and learn. They include a wide variety of mental processes used to analyze sounds and images, recall information from memory, make associations between different pieces of information, and maintain concentration on particular tasks. They can be individually identified and measured. Cognitive skill strength and efficiency correlates directly with students' ease of learning.
DRINKING, PREGNANCY, AND ITS INTELLECTUAL IMPACT
Drinking while pregnant is not smart. In fact, it's downright stupid.
A study in Alcoholism: Clinical & Experimental Research has found that even light to moderate drinking - especially during the second trimester - is associated with lower IQs in offspring at 10 years of age. This result was especially pronounced among African-American rather than Caucasian offspring.
"IQ is a measure of the child's ability to learn and to survive in his or her environment. It predicts the potential for success in school and in everyday life. Although a small but significant percentage of children are diagnosed with Fetal Alcohol Syndrome (FAS) each year, many more children are exposed to alcohol during pregnancy who do not meet criteria for FAS yet experience deficits in growth and cognitive function," said Jennifer A. Willford, assistant professor of psychiatry at the University of Pittsburgh School of Medicine.
Paul D. Connor, clinical director of the Fetal Alcohol and Drug Unit and assistant professor in the department of psychiatry and behavioral sciences at the University of Washington has this to say about the subject:
"There are a number of domains of cognitive functioning that can be impaired even in the face of a relatively normal IQ, including academic achievement (especially arithmetic), adaptive functioning, and executive functions (the ability to problem solve and learn from experiences). Deficits in intellectual, achievement, adaptive, and executive functioning could make it difficult to appropriately manage finances, function independently without assistance, and understand the consequences of - or react appropriately to - mistakes."
This is a key finding which speaks directly to the (psychological) definition of intelligence which is addressed later in this article.
ULTRA SOUNDS
Studies have shown that the frequent exposure of the human fetus to ultrasound waves is associated with a decrease in newborn body weight, an increase in the frequency of left-handedness, and delayed speech.
Because ultrasound energy is a high-frequency mechanical vibration, researchers hypothesized that it might influence the migration of neurons in a developing fetus. Neurons in mammals multiply early in fetal development and then migrate to their final destinations. Any interference or disruption in the process could result in abnormal brain function.
Commercial companies (which do ultrasounds for "keepsake" purposes) are now creating more powerful ultrasound machines capable of providing popular 3D and 4D images. The procedure, however, lasts longer as they try to make 30-minute videos of the fetus in the uterus.
The main stream magazine New Scientist reported the following: Ultrasound scans can stop cells from dividing and make them commit suicide. Routine scans, which have let doctors peek at fetuses and internal organs for the past 40 years, affect the normal cell cycle.
On the FDA website this information is posted about ultrasounds:
While ultrasound has been around for many years, expectant women and their families need to know that the long-term effects of repeated ultrasound exposures on the fetus are not fully known. In light of all that remains unknown, having a prenatal ultrasound for non-medical reasons is not a good idea.
NATURE VERSUS NURTURE...THE DEBATE CONTINUES
Now that you are aware of some of the known factors which determine, improve, and impact the intellectual development of a fetus, it's time for conception. Once that baby is born, which will be more crucial in the development of its intellect: nature (genetics) or nurture (the environment)?
Apparently for centuries, scientists and psychologists have gone back and forth on this. I read many comprehensive studies and reports on this subject during the research phase of this article, and I believe that it's time to put this debate to rest. Both nature and nurture are equally as important and must be fully observed in the intellectual development of all children. This shouldn't be an either/or proposition.
A recent study shows that early intervention in the home and in the classroom can make a big difference for a child born into extreme poverty, according to Eric Turkheimer, a psychologist at the University of Virginia in Charlottesville. The study concludes that while genetic makeup explains most of the differences in IQ for children in wealthier families, environment - and not genes - makes a bigger difference for minority children in low-income homes.
Specifically, what researchers call "heritability"- the degree to which genes influence IQ - was significantly lower for poor families. "Once you're put into an adequate environment, your genes start to take over," Mr. Turkheimer said, "but in poor environments genes don't have that ability."
But there are reports that contradict these findings...sort of.
Linda S. Gottfredson, a professor of educational studies at the University of Delaware, wrote in her article, The General Intelligence Factor that environments shared by siblings have little to do with IQ. Many people still mistakenly believe that social, psychological and economic differences among families create lasting and marked differences in IQ.
She found that behavioral geneticists refer to such environmental effects as "shared" because they are common to siblings who grow up together. Her reports states that the heritability of IQ rises with age; that is to say, the extent to which genetics accounts for differences in IQ among individuals increases as people get older.
In her article she also refers to studies comparing identical and fraternal twins, published in the past decade by a group led by Thomas J. Bouchard, Jr., of the University of Minnesota and other scholars, show that about 40 percent of IQ differences among preschoolers stems from genetic differences, but that heritability rises to 60 percent by adolescence and to 80 percent by late adulthood.
And this is perhaps the most interesting bit of information, and relevant to this section of my article:
With age, differences among individuals in their developed intelligence come to mirror more closely their genetic differences. It appears that the effects of environment on intelligence fade rather than grow with time.
Bouchard concludes that young children have the circumstances of their lives imposed on them by parents, schools and other agents of society, but as people get older they become more independent and tend to seek out the life niches that are most congenial to their genetic proclivities.
BREAST-FEEDING INCREASES INTELLIGENCE
Researchers from Christchurch School of Medicine in New Zealand studied over 1,000 children born between April and August 1977. During the period from birth to one year, they gathered information on how these children were fed.
The infants were then followed to age 18. Over the years, the researchers collected a range of cognitive and academic information on the children, including IQ, teacher ratings of school performance in reading and math, and results of standardized tests of reading comprehension, mathematics, and scholastic ability. The researchers also looked at the number of passing grades achieved in national School Certificate examinations taken at the end of the third year of high school.
The results indicated that the longer children had been breast-fed, the higher they scored on such tests.
TALKING TO YOUR CHILDREN MAKES A DIFFERENCE
Thomas Sowell, author of Race, IQ, Black Crime, and facts Liberals Ignore uncovered some fascinating information that every parent should take note of. He writes:
There is a strong case that black Americans suffer from a series of disadvantageous environments. Studies show time and again that before they go to school, black children are on average exposed to a smaller vocabulary than white children, in part due to socioeconomic factors.
While children from professional households typically exposed to a total of 2,150 different words each day, children from working class households are exposed to 1,250, and children from households on welfare a mere 620.
Yes, smart sounding children tend to come from educated, professional, two-parent environments where they pick-up valuable language skills and vocabulary from its smart sounding inhabitants.
Mr. Sowell continues: Black children are obviously not to blame for their poor socioeconomic status, but something beyond economic status is at work in black homes. Black people have not signed up for the "great mission" of the white middle class - the constant quest to stimulate intellectual growth and get their child into Harvard or Oxbridge.
Elsie Moore of Arizona State University, Phoenix, studied black children adopted by either black or white parents, all of whom were middle-class professionals. By the age of 7.5 years, those in black homes were 13 IQ points behind those being raised in the white homes.
ACCUMULATED ADVANTAGES
At this juncture in my research it dawned on me, and should be fairly obvious to you, that many children are predisposed to being smart, educated, and intelligent, simply by their exposure to the influential factors which determine them long before they start school.
An informed mother, proper prenatal care, educated, communicative parents, and a nurturing environment in which to live, all add up to accumulated advantages that formulate intellectual abilities. As you can see, some children have unfair advantages from the very beginning.
Malcolm Gladwell, author of top-selling book Outliers, wrote that "accumulated advantages" are made possible by arbitrary rules...and such unfair advantages are everywhere. "It is those who are successful who are most likely to be given the kinds of social opportunities that lead to further success," he writes. "It's the rich who get the biggest tax breaks. It's the best students who get the best teaching and most attention."
With that in mind, we turn our attention to education and intelligence.
WHAT DOES IT MEAN TO BE WELL EDUCATED?
Alfie Kohn, author of the book What Does It Mean To Be Well Educated? poses the question, does the phrase well educated refer to a quality of schooling you received, or something about you? Does it denote what you were taught? Or what you remember?
I contend that to be well educated is all in the application; the application and use of information. Information has to be used in order to become knowledge, and as we all have heard, knowledge is power.
Most people are aware of the floundering state of education in this country on some level. We tell our children that nothing is more important than getting a "good" education, and every year, due to government budget shortfalls, teachers are laid off, classes are condensed, schools are closed, and many educational programs - especially those which help the underprivileged - are cut.
The reality is, we don't really value education. We value it as a business, an industry, political ammunition, and as an accepted form of discrimination, but not for what it was intended: a means of enriching one's character and life through learning.
What we value as a society, are athletes and the entertainment they offer. The fact that a professional athlete makes more money in one season, than most teachers in any region will make in their careers, is abominable. There's always money to build new sports stadiums, but not enough to give teachers a decent (and well-deserved) raise.
Ironically, the best teachers don't go into the profession for money. They teach because it's a calling. Most of them were influenced by a really good teacher as a student. With the mass exodus of teachers, many students are not able to cultivate the mentoring relationships that they once were able to because so many are leaving the profession - voluntarily and involuntarily - within an average of three years.
At the high school level, where I got my start, the emphasis is not on how to educate the students to prepare them for life, or even college (all high schools should be college-prep schools, right?), it was about preparing them to excel on their standardized tests. Then the controversial "exit" exams were implemented and literally, many high schools were transformed into testing centers. Learning has almost become secondary.
This mentality carries over into college, which of course there's a test one must take in order to enroll (the SAT or ACT). This explains why so many college students are more concerned with completing a course, than learning from it. They are focused on getting "A's" and degrees, instead of becoming degreed thinkers. The latter of which are in greater demand by employers and comprise the bulk of the self-employed. The "get-the-good-grade" mindset is directly attributable to the relentless and often unnecessary testing that our students are subjected to in schools.
Alfie Kohn advocates the "exhibition" of learning, in which students reveal their understanding by means of in-depth projects, portfolios of assignments, and other demonstrations.
He cites a model pioneered by Ted Sizer and Deborah Meier. Meier has emphasized the importance of students having five "habits of mind," which are: the value of raising questions about evidence ("How do we know what we know?"), point of view, ("Whose perspective does this represent?"), connections ("How is this related to that?"), supposition ("How might things have been otherwise?"), and relevance ("Why is this important?").
Kohn writes: It's only the ability to raise and answer those questions that matters, though, but also the disposition to do so. For that matter, any set of intellectual objectives, any description of what it means to think deeply and critically, should be accompanied by a reference to one's interest or intrinsic motivation to do such thinking...to be well-educated then, is to have the desire as well as the means to make sure that learning never ends...
HISTORY AND PURPOSE OF IQ
We've always wanted to measure intelligence. Ironically, when you look at some the first methods used to evaluate it in the 1800s, they were not, well, very intelligent. Tactics such as subjecting people to various forms of torture to see what their threshold for pain was (the longer you could withstand wincing, the more intelligent you were believed to be), or testing your ability to detect a high pitch sound that others could not hear.
Things have changed...or have they?
No discussion of intelligence or IQ can be complete without mention of Alfred Binet, a French psychologist who was responsible for laying the groundwork for IQ testing in 1904. His original intention was to devise a test that would diagnose learning disabilities of students in France. The test results were then used to prepare special programs to help students overcome their educational difficulties.
It was never intended to be used as an absolute measure of one's intellectual capabilities.
According to Binet, intelligence could not be described as a single score. He said that the use of the Intelligence Quotient (IQ) as a definite statement of a child's intellectual capability would be a serious mistake. In addition, Binet feared that IQ measurement would be used to condemn a child to a permanent "condition" of stupidity, thereby negatively affecting his or her education and livelihood.
The original interest was in the assessment of 'mental age' -- the average level of intelligence for a person of a given age. His creation, the Binet-Simon test (originally called a "scale"), formed the archetype for future tests of intelligence.
H. H. Goddard, director of research at Vineland Training School in New Jersey, translated Binet's work into English and advocated a more general application of the Simon-Binet test. Unlike Binet, Goddard considered intelligence a solitary, fixed and inborn entity that could be measured. With help of Lewis Terman of Stanford University, his final product, published in 1916 as the Stanford Revision of the Binet-Simon Scale of Intelligence (also known as the Stanford-Binet), became the standard intelligence test in the United States.
It's important to note that the fallacy about IQ is that it is fixed and can not be changed. The fact is that IQ scores are known to fluctuate - both up and down during the course of one's lifetime. It does not mean that you become more, or less intelligent, it merely means that you tested better on one day than another.
One more thing to know about IQ tests: They have been used for racist purposes since their importation into the U.S. Many of those who were involved in the importation and refinement of these tests believed that IQ was hereditary and are responsible for feeding the fallacy that it is a "fixed" trait.
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