The TITA (Totally Interactive Testing and Analysis) System algorithm for the repetitive construction of domain-referenced tests utilizes a compact data bank, is highly portable, is useful in any discipline, requires modest computer hardware, and does not present a security problem. Clusters of related keyphrases, statement phrases, and distractors form minipools from which the computer generates items for a domain-referenced unit of instruction. Test items can take the form of multiple-choice, true-false, matching, and fill-in questions. A random number generator produces data for test items requiring numerical solutions, and the correct answer is computed from a coded formula so computational subroutines are not required for each test item. This component of computer managed instruction allows the instructor to key related items in the data minipool to learning resources and to code the resources themselves for inclusion in the data bank. Use of this system for elementary, secondary, or undergraduate courses can facilitate instructional management and result in positive effects on student morale. (CH)