Evaluation of Supplemental Instruction at the College Level.

This paper offers a new method of evaluating the Supplemental Instruction (SI) model as implemented in biology courses at National-Louis University in Chicago, Illinois. From 1990 through 1993, 14 classes of general biology were taught by the same instructor, using the same textbook and syllabus. An SI leader was available for five of the classes, and conducted SI sessions before or after class. A total of 140 students attended classes without SI, while 94 students with an SI leader. It was found that classes with SI had an average grade of 74.1 percent, while those without SI had an average grade of 67.6 percent. Within the classes that had an SI leader, grades of students who attended SI sessions were, on average, 12 percent higher than the grades of students who did not attend the sessions. (Contains 11 references.) (MDM) ******************************************************************************** Reproductions supplied by EDRS are the best that can be made from the original document. ********************************************************************************