“the best predictor of future behavior is past behavior.”
Counting the number of employees on payroll may be a misleading indicator of the
workforce because it ignores the amount of scheduled time worked by each employee
relative to a full workweek.
Numerical employment interview ratings represent objective measures.
The traits measured by Big Five personality tests are measures of factors brought about
entirely by life environments, and not by genetics.
A different set of criteria are used to evaluate the effectiveness of internal assessment
methods, since concepts like validity and adverse impact are unimportant for internal
hiring.