The Multi-Digit (MDT) testing procedure is a computer-scored testing innovation conceptualized in 1982. It is fully compatible with multiple choice and true/false tests well suited for the testing of discreet terms and concepts such as in fill-in-the-blank examinations. The student reads the question and selects the appropriate response from an alphabetically organized, lengthy list on which each term is numbered. With three-digit numbers, there can be up to 999 items on a list, far too many for any student to peruse in an attempt to recognize the correct answer. The student is required to recall the correct answer, locate it on the alphabetical list and then place the code number on the computer readable answer sheet. The paper explains how to use MDT in teaching and evaluating an Introduction to Criminal Justice course. A sample MDT test and actual MDT lists for major clinical justice terms and concepts are appended. (Author/JAZ)