On psychological tests, the standard deviation gives an indication of

Question

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The standard deviation measures how much individual scores deviate from the average score of the normative group. It gives an indication of the spread of scores around the mean, with a higher standard deviation indicating more variability in scores. Option B is incorrect because it is describing the concept of the T-score, not the standard deviation. Option C is incorrect because there is no fixed number of points required to be within the normal range, as it varies depending on the test and its normative group. Option D is incorrect because there is no universally agreed upon standard for what constitutes improvement on a psychological test.

On Psychological Tests, the Standard Deviation Gives an Indication of