The computer can assist test construction in the following four ways: (1) storage or banking of test items; (2) banking of item attributes; (3) test construction; and (4) test printing. Automated Item Banking (AIB) is a computerized item storage and test construction system which illustrates these capabilities. It was developed, implemented, and evaluated for accuracy of estimates in an experiment with 1,502 airman trainees. The experiment involved determining item statistics on one group, constructing a test interactively, scoring the test on another group, and comparing the estimated and observed test statistics; particularly, the mean, standard deviation, and reliability of an interactively constructed test. These comparisons indicated that the estimation procedures were sufficiently exact to permit a test constructor to have knowledge of the characteristics of a test prior to administering it. The AIB system permits rapid, secure, and error-free construction; furthermore, its natural language commands permit user flexibility. Appendices discuss the technical aspects and operation of the AIB. (Author/CP)