Examlex
Surveys are procedures used to measure and evaluate personality traits, emotional
states, aptitudes, interests, abilities, and values.
Standard Deviation
An indicator of the degree of variation or spread within a collection of numbers.
Variability
The extent to which data points in a data set differ from each other and from the mean.
Range
The difference between the highest and lowest values in a data set.
Coefficient of Variation
A normalized measure of dispersion of a probability distribution, calculated as the ratio of the standard deviation to the mean, usually expressed as a percentage.
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