Can intelligence measured




















Intelligence is measured by either a group or individually administered test. Not all tests that claim to measure intelligence, however, are of equal validity. Group intelligence tests, which are administered to a group of students with minimal examiner-examinee interaction, are useful screening devices at best, and their results should be interpreted with caution.

Individual intelligence or IQ tests, administered on a one-to-one basis by a psychologist, are the preferred way to measure intelligence. Typically individual tests of intelligence take an hour to an hour and a half to administer and are given by psychologists. These measures of learning aptitude typically encompass a range of cognitive tasks of a verbal, conceptual, perceptual and quantitative nature.

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Treffert, D. Islands of genius. Turkheimer, E. Socioeconomic status modifies heritability of IQ in young children. Psychological Science, 14 6 , — Wagner, R. Practical intelligence in real-world pursuits: The role of tacit knowledge.

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Intelligence and Language. Learning Objectives Define intelligence and list the different types of intelligences psychologists study. Summarize the characteristics of a scientifically valid intelligence test. Outline the biological and environmental determinants of intelligence.

Psychology in Everyday Life: Emotional Intelligence Although most psychologists have considered intelligence a cognitive ability, people also use their emotions to help them solve problems and relate effectively to others.

Tom felt anxious and became a bit stressed when he thought about all the work he needed to do. Contempt most closely combines which two emotions? She was feeling peaceful and content. How well would each of the following actions help her preserve her good mood? Action 1: She started to make a list of things at home that she needed to do.

Action 2: She began thinking about where and when she would go on her next vacation. Key Takeaways Intelligence is the ability to think, to learn from experience, to solve problems, and to adapt to new situations.

Intelligence is important because it has an impact on many human behaviours. Psychologists believe that there is a construct, known as general intelligence g , that accounts for the overall differences in intelligence among people. There is also evidence for specific intelligences s , which are measures of specific skills in narrow domains, including creativity and practical intelligence.

The intelligence quotient IQ is a measure of intelligence that is adjusted for age. Brain volume, speed of neural transmission, and working memory capacity are related to IQ. The revised version, published in , grouped items by age, with six items at each level from three to thirteen years. Items were placed at a particular age level if about 75 percent of children of that age could pass them correctly.

In the United States, Lewis Terman, a psychologist at Stanford University, developed the Stanford-Binet test a test that was soon put to use in many different settings.

Over the years the Stanford-Binet has been revised several times. In contrast, numbers below indicated that the individual was less intelligent than her or his peers. Perhaps you can already see one obvious problem with this type of IQ score: At some point, mental growth levels off or stops, while chronological age continues to grow. As a result, IQ scores begin to decline after the early teen years! Partly because of this problem, IQ scores now have a different definition.

Thus, an IQ above indicates that the person has scored higher than the average person in her or his age group, while a score below indicates that the person has scored lower than average.

To overcome this and other problems, David Wechsler devised a set of tests for both children and adults that include nonverbal, or performance, items as well as verbal ones, and that yield separate scores for these two components of intelligence.

Wechsler believed that differences between scores on the various subtests could be used to diagnose serious psychological disorders. However, research on this possibility has yielded mixed results at best. Some findings indicate that children who score high on certain subtests, such as Picture Completion and Object Assembly, but lower on others, such as Arithmetic, Information, and Vocabulary, are more likely to suffer from learning disabilities than children with other patterns of scores.

Once again, however, not all findings point to such conclusions, so the value of the WISC now in its third revision, WISC—3 for this kind of diagnosis remains somewhat uncertain. Psychologists describe such tests as aptitude tests, and scores on these tests are often used to predict future performance.

In contrast, achievement tests are designed to measure what you have already learned; for example, the tests you take in this class are designed to be achievement tests. The distinction between these two types of tests is not precise, however. When engaged in some task, such as learning, people want to keep at it, Kaufman explains. That means they will push forward, long after they might otherwise have been expected to give up.

Engagement also lets a person switch between focused attention and mind wandering. That daydreaming state can be an important part of intelligence. While daydreaming, a so-called default mode network within the brain kicks into action.

Its nerve cells are active when the brain is at rest. For a long time, psychologists thought the default mode network was active only when the executive control network rested. In other words, you could not focus on an activity and daydream at the same time. To see if that was really true, last year Kaufman teamed up with researchers at the University of North Carolina in Greensboro and at the University of Graz in Austria.

They scanned the brains of volunteers using functional magnetic resonance imaging , or fMRI. This tool uses a strong magnetic field to record brain activity.

As they scanned the brains of 25 college students, the researchers asked the students to think of as many creative uses as they could for everyday objects. And as students were being as creative as possible, parts of both the default mode network and the executive control network lit up. Rather, Kaufman suspects, the two networks work together to make creativity possible.

And he thinks it is essential for problem-solving. She works at the University of Pennsylvania in Philadelphia. Like many other psychologists, Duckworth wondered what makes one person more successful than another. In , she interviewed people from all walks of life. She asked each what they thought made someone successful. Most people believed intelligence and talent were important.

When Duckworth dug deeper, she found that the people who performed best — those who were promoted over and over, or made a lot of money — shared a trait independent of intelligence. They had what she now calls grit. Grit has two parts: passion and perseverance. Passion points to a lasting interest in something. People who persevere work through challenges to finish a project. Duckworth developed a set of questions to assess passion and perseverance.

In one study of people 25 and older, she found that as people age, they become more likely to stick with a project. She also found that grit increases with education.



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