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In _____ validity, scores on the measure indicate behavior on a criterion measured at a future time.
Standard Deviation
A measure of the amount of variation or dispersion in a set of values, indicating how much the values deviate from the mean.
Range
The difference between the highest and lowest values in a set of numbers, indicating the spread or dispersion of the dataset.
Empirical Rule
The empirical rule, also known as the 68-95-99.7 rule, states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, 95% within two, and 99.7% within three.
Normal Curve
A symmetrical, bell-shaped curve that represents the distribution of values, deviations, or probabilities for a set of data in which most measurements cluster around the mean.
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