A Comparative Study of Two Tests of Supervisory Knowledge
The objective of the present study was to obtain a comparative assessment of two supervisory knowledge tests (the Supervisory Practices Inventory and the Supervisory Inventory on Human Relations) in terms of face and concurrent validity, time required for administration—and correlation with age, supervisory experience, and college education. Both tests were administered to 55 supervisors with the Emerson Electric Company, after which they were asked to indicate which test, in their opinion, would do the better job of measuring a man's knowledge of supervisory procedure, and which would yield, for them, the better score. Statistical analysis revealed that neither test had a significant correlation with supervisory effectiveness, using Personnel Department rankings as the criterion. In terms of relative face validity (i.e., acceptance by supervisors) the Supervisory Inventory on Human Relations was superior. This test also had a significant relationship with college training, although neither test was significantly related to age of employee or supervisory experience. The tests were equivalent in time required for administration.