Examlex
Which type of validity is most important for educational tests?
Mean
An average of a set of numbers, calculated by dividing the sum of all the values by the number of values.
Z Score
A numerical calculation indicating how a specific value's distance from the group's average is expressed in multiple standard deviations.
Mean
The arithmetic average of a set of numbers, calculated by adding them all up and dividing by the quantity of numbers.
Standard Score
A score that expresses an individual's position relative to the mean, based on the standard deviation of the scores in the distribution.
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