The application of a well-known and fairly simple information retrieval technology to the process of testing undergraduate college students is described. The Computerized Test Library allows the student and/or the professor to extract questions of varying difficulty covering whatever topic the student is studying; if the student performs at the appropriate level, both the student and professor are so informed. The Computerized Test Library is created from punched card record groups (a single questions and its coded information) on a 2311 disk pack, comprising two 99-cylinder sequential files. The disk records have a length of 80 bytes and are blocked at 3600 bytes. The punched card record groups consist of a header card and a variable number of questions and answer cards. The package is comprised of a total of six programs written in PL/1 language. (The programs and further documentation are available from Jon Gosser, Psychology, Delta College, University Center, Michigan 48710.) Card Input Formats, Description of Codes in Computerized Test Library, examples of test questions, answers, and related data, instructions as to file maintenance, and a brief evaluation of the tests of the Computerized Test Library are provided. (DB)