This program listing is a supplement to the Microcomputer Network for Computerized Adaptive Testing (CAT). The driver textfile program allows access to major subprograms of the CAT project. The test administration textfile program gives examinees a prescribed set of subtests. The parameter management textfile program establishes a file containing the testing strategies and parameters given to examinees. The test manager textfile program provides file maintenance of tests; allows creation of new tests and editing of test questions; lists tests to file, console, or printer for verification; and writes subtests from the hard disk to a floppy disk. The examinee manager textfile program allows access to and editing of examinee records; lists examinee's test scores; removes or modifies an examinee record; controls examinee access to the CAT system; and lists the status of examinees in the system. The strategy manager textfile program allows access to data structures used by different strategies of CAT methods; currently, only a Bayesian method is implemented. The graphics management program includes the graphics editor driver and main menu graphics procedures. The CAT diagnostic program is a procedure for detecting problems in the CAT system files. The miscellaneous textfiles program initializes and formats files. (DWH)