Societal Impacts Of Genetic Study Of Intelligence

Most scientists agree that genes have some influence over general intelligence and special aptitudes in such activities as athletics, mathematics, music, and science. But genes are not the only factor involved in producing these characteristics.

Sir Francis Galton (1869, 1883) quantified traits that were assumed to be correlated, and developed the first comprehensive test of intelligence. By the end of the 19th century, the foundation was laid for modern day intelligence testing (Wicket, 1998). In 1905, the French psychologist Alfred Binet published the first modern intelligence test to identify students who needed special help in coping with the school curriculum (Neiser, et al. 1996). Shortly thereafter in 1908 and 1911, Alfred Binet and Theodore Simon published revisions of the Binet intelligence test (Wicket). The mental age concept was adopted to express the results in adequate units. The concept is based on an individual’s performance in comparison to the average performance of individuals in a specific chronological age group (Kaplin, & Saccuzzo).

Despite differences of inequalities, “the work of Richard Henstein and Charles Murray publish of the Bell Curve, “social science racism gained respectability,” (p 64). The book was a “thinly veiled assault on the social safety net that benefited poor women and open doors for African Americans to attend white universities, “(p 64).

Labeling bias exists when a test claims to measure one thing but actually measures something else. Tests that claim to assess such traits as “aptitude” or “intelligence” imply that they are measuring something innate, given that many people assume that these traits are genetic. However, Jencks notes that “almost all psychologists now agree that while an individual’s score on an intelligence or aptitude test depends partly on his or her genetic makeup, it also reflects a multitude of environmental influences” (p. 56). Thus, such tests are racially biased estimates of the innate traits that most laypeople think these tests are purporting to evaluate. Fortunately, this bias can be eliminated by simply changing the names of what these tests claim to measure.

Bell, and then traces the development of state-ordered coerced sterilization. She then moves on to define and critique the arguments made by Murray and Herrnstein in their book The Bell Curve. The book she discusses posits that there is a link between race and intelligence, and goes even further to give recommendations on policies that should be implemented to keep intelligence from declining. She also connects eugenic sterilization and the propositions in The Bell Curve are to the topic of responsible reproduction. The article concludes by Miller showing that the arguments made in The Bell Curve are an example of negative

Gladwell reveals that to excel in the world, one must be born with or introduced to the right tools. These tools may include being born into a high class home, when one is born, as well as being recognized early in school. When Lewis Terman, in 1921, conducted the Genetic Study of Genius observation, he only took into account the subjects I.Q. scores. It wasn’t until later, when he noticed the divergence of three different groups A, B, and C, did he realize that it wasn’t only about scores. The groups were separated by societal class, group A born from the high end of the scale while C was from the lower end. Group A, as well as most of B, did superb at the same time that group C fell out. Intelligence

Almost all individuals have a unique genotype. This affects their aptitudes and intelligence. Certain children have noticeable cognition deflects that limit their ability to learn. Some of the conditions that lead to such deficits are strongly influences by genetics.

Critics have since proven that the Bell Curve is inaccurate and intelligence is not only measured by tests and is not affected by certain circumstances such as race. Stephen Jay Gould’s “Critique of The Bell Curve” is one of the most popular arguments against the Bell

Also, in the early 1900’s there were different intelligence test conducted mainly to “justify racial and ethnic discrimination”. According to the understanding race website, “The results of these intelligence tests were influential in shaping U.S. immigration policy that limited immigrants from Southern and Eastern Europe, and in justifying race-based segregation in public education, and U.S. conscription during World War I. Previously, the scientific debate centered largely on perceived differences in racial intelligence based on cranial size”. (Science: 1900s-1930s Race and Intelligence)

Intelligence by definition is “the ability to acquire and apply knowledge and skills” (Oxford Dictionary, 2014). However, many psychologists argue that there is no standard definition of ‘intelligence’, and there have been many different theories over time as psychologists try to find better ways to define this concept (Boundless 2013). While some believe in a single, general intelligence, others believe that intelligence involves multiple abilities and skills. Another largely debated concept is whether intelligence is genetically determined and fixed, or whether is it open to change, through learning and environmental influence. This is commonly known as the nature vs. nurture debate.

Identical twin studies are most useful in determining genetic influence on intelligence. Since the identical twins share the same exact genes, the straightforward comparison of intelligence can display if this human trait is truly heritable. Similarity of intelligence scores between identical twins supports the genetic influence on intelligence. According to Myers (2007),

One of the most interesting and controversial areas in behavioral genetics, human intelligence is currently assumed to be subject to both genetic and environmental influences.

Debates on the relationship between birth order and intelligence have been remaining controversial. Birth order is considered as a person's ranking by age among his or her siblings. There have been numerous researchers studying about this subject to find whether firstborns generally have a higher IQ scores than their siblings. Some scientists conclude that birth order strongly influents intelligence; however, others oppose to this, claiming that birth order has no effect on intelligence. In this paper, my study deals with the birth order effects on intelligence.

Genes build the phenotype of humans as well as the underlying genotype. Competition between cultural genes leads to varied success of genetic determinism. It can therefore be said that learnt traits such as those espoused within a specific culture, can produce what may seem to be the genetic genotype of an individual. Genes are not always advantageous in the

Intelligence is used by everyone to help them in everyday life. Where people get their intelligence, however, is debatable. A person is born with an amount of inherited intelligence; this intelligence is considered nature, genetic, or heredity. Then there is intelligence that comes from the ability to learn from experience; this intelligence is impacted by nurture or the environment. It is known that both genetic and environmental factors determine intelligence, but the subject is controversial among professionals. Does nature or nurture have a bigger impact on intelligence? Is it true that some people are born with high intelligence, but are limited by their environment? Given the proper tools, can a person increase their intelligence? How accurate are IQ tests?