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Chapter 9: Problem 5

On most modern IQ tests, a score of 115 would be: A. about average. B. about \(15 \%\) higher than the average of one's agemates. C. an indication of genius. D. one standard deviation above the mean.

Short Answer

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Question: On most modern IQ tests, a score of 115 would be considered: A. About average B. About 15% higher than the average of one's agemates C. An indication of genius D. One standard deviation above the mean Answer: D. One standard deviation above the mean

Step by step solution

01

Analyze the given options

First, let's analyze each of the given options: A. About average: This option would be true if the score of 115 is considered an average score on most modern IQ tests. B. About \(15\%\) higher than the average of one's agemates: This option would be true if the score of 115 is \(15\%\) higher than the average (100) in modern IQ tests. C. An indication of genius: This option would be true if the score of 115 is considered a genius-level score on most modern IQ tests. D. One standard deviation above the mean: This option would be true if the score of 115 is one standard deviation higher than the mean (100) in modern IQ tests.
02

Compare the score of 115 to the mean and standard deviation

On modern IQ tests, the mean score is 100 and the standard deviation is 15. The score of 115 is 15 points higher than the mean. This means that the score of 115 is: (115 - 100) / 15 = 1 One standard deviation above the mean.
03

Select the correct answer

From our analysis, we can see that the correct answer is D. One standard deviation above the mean.

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Most popular questions from this chapter

Most school districts consider children who ___ to be gifted. A. have \(1 Q\) scores above 115 B. score in the upper \(2 \%-3 \%\) of the \(1 Q\) distribution C. have parents in professional careers D. demonstrate high levels of leadership and creativity

In which of the following cases would you expect to find the greatest similarity in \(1 Q ?\) A. between fraternal twins B. between identical twins C. between nontwin siblings D. between parent and child

If you score at the 75 th percentile on a standardized test, it means that: A. \(75 \%\) of those who took the test scored better than you did. B. \(25 \%\) of those who took the test scored less than you did. C. \(75 \%\) of those who took the test scored the same or less than you did D. you answered \(75 \%\) of the questions correctly.

IQ tests have proven to be good predictors of: A. social intelligence. B. practical problem-solving intelligence. C. school performance. D. all of the above.

Which of the following is a true statement regarding Francis Calton? A. He took the position that intelligence is largely determined by heredity. B. He advocated the development of special programs to tap the intellectual potential of the culturally disadvantaged. C. He developed tests that identified those children who were unable to profit from a normal education. D. He took the position that intelligence is morela matter of environment than heredity.
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