Which of the following was the impetus for the transition from the quantitative approach of HR to the unionization approach? Which of the following was the impetus for the transition from the quantitative approach of HR to the unionization approach? Recognizing that science failed to support the quantitative approach because people cannot be more efficient Discovering that paying unionized workers was cheaper and more efficient A realization that the efficiency demands of quantitative management tended to exploit workers None of the other answers are true