2012년 11월 27일 화요일

Limitations of IQ Testing

Much debate circulates around the different IQ tests that are administered throughout the country. Many researchers claim that the tests measure cultural knowledge and understanding, not innate intelligence. Critics suggest that both IQ and standardized tests are racially and culturally biased.

According to a 1996 report by the American Psychological Association, "Intelligence scores partially predict individual differences in school achievement, such as grade point average and number of years of education that individuals complete.

Nevertheless, population levels of school achievement are not determined solely or even primarily by intelligence or any other individual-difference variable. Many differences can be attributed primarily to differences in culture and schooling rather than in abilities measured by intelligence tests."

Outside factors, such as where you grow up, what kind of school you attend, and how much school you attend contribute substantially to the development of intelligences. However, it is not yet clearly understood what those factors are, or how they work. It is widely agreed that standardized tests, like an IQ test, do not accurately reflect all forms of intelligence.

Obviously, cultural knowledge, creativity, wisdom, common sense and social sensitivity are not measured in IQ tests, but they certainly contribute to a person's intelligence.

Still, there are some people who feel strongly that IQ tests are the best way to predict future performance at work and in school. They feel that IQ tests are better predictors of future success than even trained personnel experts.

Experts have numerous theories when it comes to explaining, defining and predicting intelligence. Some claim that intelligence is innate and fixed and can be measured with clearly defined statistical methods. Others claim that experience and environment affect intelligence - that intelligence is the composite of many different talents and abilities which continue to improve over time.

Further study of Intelligence
Three researchers have made significant advances in this field in recent years:

1. Robert Sternberg - Has proposed three sub-theories of intelligence: context, experience, and the cognitive components of information processing. In short, intelligence involves either adapting to your environment, moving to another more appropriate environment or changing your environment. Your level of experience with the activities or knowledge being tested gets reduced to intelligence, but intelligence is best measured out of context when you perform unfamiliar tasks.

2. Howard Gardner - Has proposed his "Theory of Multiple Intelligences" where there are seven independent but related intelligences: logical-mathematical, linguistic, musical, spatial, bodily-kinesthetic, interpersonal and intrapersonal. Gardner is one  of the biggest proponents for developing new methods for testing intelligence. He speculates that intelligence is culturally and experientially based. One 's experience will influence how much each of these can be expressed.

3. John Horn - Horn had proposed that there are two factors to intelligence: fluid intelligence and crystallized intelligence. Fluid intelligence is one 's ability to reason and solve problems in novel or unfamiliar situations. Crystallized intelligence is the extent to which an individual has attained knowledge of her culture.

In general, recent research has focused on intelligence as something that can be changed not as something that is fixed in childhood and as something culturally and experientially based. Most current researchers agree that there are multiple forms of intelligence, although there is no consensus on how many.

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