You want to know whether the trained and untrained employees at your organization differ in their job performance.The variability in performance observed among the trained employees is called

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The variability in performance observed among the trained employees is called error variance. Error variance is the random variation that occurs due to factors such as measurement error or individual differences that cannot be accounted for by the variables being studied (in this case, training and job performance). Therefore, it is important to control for error variance in order to accurately assess the differences in job performance between trained and untrained employees.

You Want to Know Whether the Trained and Untrained Employees