IQ Classification and Scoring Quiz

The current IQ scoring method is based on the deviation IQ, where an IQ score of 100 represents average performance in the sample of test-takers of about the same age as was used to norm the test. A score of 115 indicates performance one standard deviation above the mean, while a score of 85 indicates performance one standard deviation below the mean. This method allows for a consistent definition of IQ for both children and adults and is used for standard scoring of all IQ tests. It categorizes human intelligence into various classifications such as 'superior' or 'average'.

About 5 percent of the population scores above 125 according to the 'deviation IQ' definition of IQ test standard scores, which follows a normal distribution.

Lewis Terman and other early developers were involved in the creation of IQ testing.

<p>An IQ score of 85 indicates performance one standard deviation below the mean in the current IQ scoring method.</p> Signup and view all the answers

<p>About two-thirds of all test-takers obtain scores from 85 to 115 in the current IQ scoring method.</p> Signup and view all the answers

<p>The 'deviation IQ' method allows for a consistent definition of IQ for both children and adults, as it measures performance relative to the mean and standard deviation of the sample of test-takers of about the same age as was used to norm the test.</p> Signup and view all the answers

<p>An IQ score of 115 means performance one standard deviation above the mean, indicating above-average performance compared to the normed sample of test-takers of about the same age.</p> Signup and view all the answers

<p>An IQ score of 85 means performance one standard deviation below the mean, indicating below-average performance compared to the normed sample of test-takers of about the same age.</p> Signup and view all the answers

<p>Approximately two-thirds of all test-takers obtain scores from 85 to 115, as these scores fall within one standard deviation below and one standard deviation above the mean in a normal distribution.</p> Signup and view all the answers

<p>About 5 percent of the population scores above 125 in the current IQ scoring method, as this score represents performance more than one standard deviation above the mean in a normal distribution.</p> Signup and view all the answers