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1 .This is Scientific American 60-Second Mind, I'm Christie Nicholson. Got a minute?
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2 .Young American students take a variety of standardized tests.
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3 .But the ways that students are educated so that they'll do well on such tests presents a problem.
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4 .The preparation increases what's called crystallized knowledge: that's factual information, such as "the capital of Texas is Austin."
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5 .But the tests do not enhance what is referred to as fluid intelligence: the ability to think logically or theoretically.
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6 .That's according to a study in the journal Psychological Science.
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7 .Scientists analyzed test scores and IQs of almost 1,400 eighth-graders.
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8 .And they found that schoolwork could significantly raise students' test scores,
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9 .while having no effect on the ratings of their fluid intelligence scores…
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10 .which are better indicators of memory capacity, thinking speed and the ability to solve abstract problems.
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11 .It's been shown that high scores on standardized tests predict success on future exams like the SAT and Advanced Placement tests.
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12 .But little is known about the effect of improving fluid intelligence.
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13 .Still, the researchers note that crystallized intelligence is clearly important,
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14 .since, mathematics and comprehension are critical for later academic and employment success.
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15 .Systems studying increase fluid intelligence would therefore seem to be a good development logically and theoretically.
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16 .Thanks for the minute, for Scientific American 60-Second Mind. I'm Christie Nicholson.
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