The results of all the relevant studies undertaken so far indicate that the Pre-Engineering Inventory Composite Score on the whole performs very satisfactorily as a predictor of engineering school success. Of course, any given set of weights will not provide optimum preliction for all schools. The use of a specially weighted combination of those tests that comprise the Composite Score, or possibly of some other tests, would undoubtedly appreciably improve the prediction in some schools. However, it is not certain that the advantages gained by computing a special composite score would justify the expense involved.