Intelligence Between Intelligence And Psychometric Tests

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There are a slew of tests that attempt to measure how intelligent human beings are. They all measure different aspects and those factors will be covered here. One of the misconceptions is that the tests measure inborn intelligence. Few of the activities are designed for that purpose. They actually measure a person’s interaction with the environment and what they have learned from that interaction. The most common tested aspect is critical thinking. Instead of straightforward questions, intelligence tests offer questions with a twist. It is assumed that the most intelligent people will see obvious flaws in the obvious answers (Steinberg & Williams, 2015). Some intelligence tests also measure reflexes, both mental and physical. The assumption is quick reaction times reflect an active brain and in the line of thinking, a more intelligent person.

It is commonly believed that people differ in various ways, and these individual differences play a detrimental role on their behaviour at work. To be more specific, individual differences include two kernel factors which refers to intelligence and personality. It is clear that individual differences are important in determining behaviour, however, there are other external factors which are equally important, such as working environment or culture within an organisation.

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.

Each theory of intelligence has not only a different method of testing intelligence, but also a different definition of intelligence, which each creator ascribes to. Stanford-Binet Intelligence Scales (Terman, 1916), or IQ tests as they are commonly referred to as, are currently one of the most widely used tools for intelligence measurement, however, research suggests they are a poor predictor of future academic success for particular cultural groups (Gardner, 1993). In one of the largest neurocognitive-based intelligence studies performed to date, it was revealed through the observation of neuroimaging data that IQ scores alone were not likely to indicate a fundamental intellectual ability because intelligence is composed of multiple anatomically distinct components (Hampshire, Highfield, Parkin, & Owen, 2012). Considering this development, it would appear that IQ tests are only measuring one subsection of intelligence, located in the frontoparietal cortex (Gray, Chabris, & Braver, 2003; Hampshire, Highfield, Parkin, & Owen, 2012). In order to provide analogous statistics to base research upon, it is vital to create multifaceted, culturally sensitive measurements because cultures differ greatly in the emphasis they place on certain aspects of intelligence (Sternberg, Grigorenko, & Kidd, 2005).

One of the main purposes of the eugenics movement was to attempt to control the level of intelligence in the human race. This is not completely possible, however, as all genes are linked to other genes, and intelligence is affected by many more than just the one gene (Agar, 2006). In contrast to Galton’s theory, intelligence is not actually completely hereditary. Between 47 and 58% of intelligence lies in DNA, and the rest is based on environmental factors (Steen, 1996). Many types of intelligence tests have been created to measure the level of intelligence in humans. Defining intelligence in itself is a difficult task, as there are

Human intelligence is one of the most complex and abstract things in the world, but because of one test created by Lewis Terman, a professor of psychology at Stanford University, we are able to see it as a small, simple number (Epstein, 1973). An Intelligence Quotient (IQ) Test scores human intelligence on a numerical scale. Within this scale there are several categories which people are placed in as shown in Table 1. These scores, categories, labels, are tidy, easy to remember, and can greatly influence one’s life. They can act almost like a name tag, and become an identifying factor wherever you go.

The debate surrounding the heritability of intelligence is one that has been going on for centuries starting with Sir Francis Galton in 1869 and the publication of his book, Hereditary Genius. Galton was one of the first scientists to study individual differences in intelligence. In his book, he claimed that intelligence is inherited and that this is supported by the fact that eminence runs in families. He went further to say that selective breeding ought to be encouraged in order to improve society which sparked the on-going controversy surrounding

Intelligence tests are inaccurate to measures true ability of a person because genes affect how a person responds to their surroundings, the tests cannot measure the person biological makeup or his true potential for being “smart”.

The theory of heritability of intelligence was proposed by Francis Galton (1869) in his book ‘Hereditary Genius’; the first scientific study of ingenuity. Galton was influenced by his cousin’s (Charles Darwin, 1859) book ‘On the Origin of Species’ which portrays the thesis that animals

For a long time man has sought a way to quantify intelligence weather it be a single attribute or a set of many different kind abilities. One well-known test, devised to measure intellectual aptitude, is the intelligence quotient, or IQ test. Furthermore, we have been interested how IQ changes with age. Early on in twentieth century, cross sectional research determined that IQ increased throughout childhood, peaked at adolescence and declined from there on out. This cross sectional research involved different groups of people at different ages. The dilemma with such a data set is that it does not take into account many variables that skew these results as you are measuring different sets of individuals and their education level or quality of education (Berger, K. S. 2005).

The role of genetics and the human genome in intelligence has been discussed by researchers for centuries, the heritability of intelligence as a trait in

Once a person has an idea of what intelligence is and what it means, a final thought one might consider is what influences are responsible for the different types of intellect. Two possible influences are genetics and the environment in which one lives, with genetics being the strongest influence (Santrock, 2009, pg. 302). Most researchers agree that a person’s genetics and environment interact with one another to influence the outcome of that person’s intelligence (Santrock, 2009, pg. 302). Genetic influences should be pretty obvious, so there should be no need to explain it; a person’s environment on the other hand, can involve several factors. An environment can consist of elements such as a person’s school, home, friendships, family relationships, and workplaces. All of these components factor in to influence a person’s intelligence.

While this assumption is accepted by a majority of geneticists and behavioral scientists, there is great disagreement on the degree of influence each contributes. Arguments for environmental influences are compelling; at the same time there is growing evidence that genetic influence on intelligence is significant and substantial (Eyesenck, 1998; Mackintosh, 1998; Plomin, 1994; Steen, 1996). The purpose of this paper is to explore the question: "How is intelligence influenced by heredity and environment?"

When a person utters the word “intelligence,” people tend to think of a genius like Albert Einstein developing some obscure equation that the great majority of the population will never understand. The problem with the definition of intelligence is that people relate intelligence to words like “genius” which require intelligence but do not have the same definition as intelligence. Often, people try to use related words to define intelligence, but these words are unable to define intelligence since many are only different levels of intelligence. While many definitions try to encompass the meaning of intelligence and various definitions describe a small part of intelligence, no definition completely explains intelligence, because