Differentiation of individuals in terms of their predictability

To improve the efficiency of selection techniques, a method is proposed in which individuals whose criterion score predictability--as measured by the difference between their standard test scores and standard criterion scores--is high, are screened first on a measure (such as an occupational inventory) that correlates with this difference, and then those so screened are further screened on the basis of their test scores. An example based on data for two samples of taxicab drivers, using a tapping and dotting test for prediction of criterion performance, and an occupational level inventory measure to identify the "predictable" individuals, is presented.