Examlex
In the more sophisticated norming programs for tests, what type of sampling method is usually employed?
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values deviate from the mean.
Standard Error
The standard deviation of the sampling distribution of a statistic, typically the mean, indicating the variability of an estimate.
Mean
The mean is the average of a set of numbers, calculated by adding them all together and then dividing by the count of those numbers.
Z-statistic
A statistical metric that measures the number of standard deviations a data point is from the mean, used in hypothesis testing.
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