On the Wechsler tests of intelligence,the Full Scale IQ has a mean of ________________ and a standard deviation of _______________.
A) 50; 10
B) 100; 15
C) 10; 3
D) 115; 15

Question

Quizplus · Accepted Answer

The Full Scale IQ is standardized with a mean of 100 and a standard deviation of 15. This means that scores around 100 are considered average, with scores one standard deviation above or below (i.e. 115 or 85) being considered above or below average respectively. Choice A is incorrect as a mean of 50 would be extremely low for an IQ test. Choice C is incorrect as a standard deviation of 3 would mean that the range of scores would be very limited. Choice D is incorrect as a mean of 115 would be too high for IQ scores to have a normal distribution.

On the Wechsler Tests of Intelligence,the Full Scale IQ Has