GROWTH DEVELOPMENT CHILD
MEASUREMENT OF INTELLIGENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the occipital lobe is more active when people are thinking about questions on intelligence tests
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people who are smarter use less energy when solving problems
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there is no correlation between processing speed and IQ scores
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people with larger brains are always smarter than those with smaller brains
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Detailed explanation-1: -The correct answer is B. (people who are smarter use less energy when solving problems). Explanation: Smarter people need less energy to function efficiently, to solve different problems and less smart people require more energy to solve the same tasks.
Detailed explanation-2: -In healthy volunteers, total brain volume weakly correlates with intelligence, with a correlation value between 0.3 and 0.4 out of a possible 1.0. In other words, brain size accounts for between 9 and 16 percent of the overall variability in general intelligence.
Detailed explanation-3: -Brain size has a surprisingly small impact on intelligence and behavior. Key Points: Having an unusually large brain doesn’t necessarily make someone a genius, and large-scale research suggests only a slight and tenuous relationship between brain size and intelligence.
Detailed explanation-4: -"On average, a person with a larger brain will tend to perform better on tests of cognition than one with a smaller brain. But size is only a small part of the picture, explaining about 2 percent of the variability in test performance.
Detailed explanation-5: -There are two reasons. First, brain structure is more important than brain size, and human brains with their highly folded and complicated cortex can do things no other brains can. Second, relative size is more important than absolute size.