The In-Basket TestThe In-Basket Test is a simulation exercise requiring the performance of a managerial position by dealing with the mail and related items which have presumably accumulated in the "Inbasket" of the manager. Each subject is confronted with a standard set of problems in the form of letters, memos, reports, and related materials. The exercise provides an excellent training tool for prospective managers, and it is widely used for this purpose in industry. I n addition, several methods of scoring performance on these materials have been worked out so that the in-basket is frequently used as a selection aid.One of the major advantages of the in-basket test as a selection aid is its high face validity. Since it requires performance of an important aspect of a managerial work, the use of this test as a screening device makes sense to candidates for managerial jobs.It is probably the high face validity of the test that accounts for the fact that there have been few attempts to validate the test as a measure of actual on-the-job managerial performance. Its validity for the purpose seems obvious.