The Wechsler scales all have a mean of ____ and a standard deviation of ____.

Question

Quizplus · Accepted Answer

The Wechsler scales have a mean of 100 and a standard deviation of 15. This means that a score of 100 is considered average, and scores that are farther away from 100 represent higher or lower levels of performance. Choice B is incorrect because a mean of 500 would be extremely high for a test. Choice C is incorrect because a standard deviation of 10 would be too small for a test of this nature. Choice D is incorrect because a mean of 0 and a standard deviation of 1 is only appropriate for tests where the scores are dichotomous (i.e. correct/incorrect).

The Wechsler Scales All Have a Mean of ____ and a Standard