Some employers make the mistake of carefully choosing predictors (such
as manual dexterity) while virtually ignoring the question of how they’re going
to measure performance (the criteria). One study involved 212 gas utility company
employees. The researchers found a significant relationship between the
test battery that was used as a predictor and two performance criteria—supervisor
ratings of performance and objective productivity indices. However, there
was virtually no relationship between the same test battery and two other
criteria, namely an objective quality index or employee self-ratings.11