Examlex
If I can say that my weekly statistics quiz fairly assesses the material covered,what source of validity evidence should I have collected?
Median
The middle value of a data set when it is ordered from least to greatest, separating the higher half from the lower half.
Ordered Data Set
A collection of objects or numbers arranged in a natural, chronologically sequential or hierarchical order.
Median
The value separating the higher half from the lower half of a data sample, a population, or a probability distribution, often used as a measure of central tendency.
Variability
A measure of the dispersion or spread of data points in a dataset, indicating how much the numbers differ from each other and from the mean.
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