TESTOR is a computer-assisted testing system that provides student evaluation while simultaneously managing all records associated with a program of individualized instruction. Use of TESTOR in a general biology program, at the University of Missouri, is described. (JN)

Describes two approaches of assuring adequate student laboratory preparation by means of computerized, prelab quizzes. One, designed for the Apple microcomputer for introductory chemistry, is available on diskette from the authors. The other, for organic chemistry, is done on a time-shared system. Additional information on this program is…