Examlex
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Historical Standard Deviation
A measure of the amount of variation or dispersion of a set of historical data points, indicating how much the data points diverge from the historical mean.
Standardized Test
A test that is administered and scored in a consistent manner to ensure legal defensibility and fairness in measuring educational or cognitive abilities.
Test Statistic
A numerical value calculated from a statistical test's sample data, used to determine whether to reject the null hypothesis in the context of the test.
P-value
A measure in statistics that helps to determine the strength of the results in hypothesis testing, indicating the probability of observing data at least as extreme as the data actually observed, under the assumption that the null hypothesis is true.
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