Examlex
What are reliability and validity in the context of selection tools?
Population Mean
The average of a set of characteristics (e.g., measurements, scores) for every individual or entity in the entire population.
Standard Error
The standard deviation of the sample mean distribution or an estimate of that standard deviation.
Standard Deviation
A measure of the amount of variation or dispersion of a set of values, indicating how much the values in the dataset deviate from the mean.
Sample Size
The number of observations or individuals included in a sample drawn from a population.
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