Improving student success in difficult engineering education courses through Supplemental Instruction (SI) – what is the impact of the degree of SI attendance?
The customary way to determine whether an adopted Supplemental Instruction (SI) program has been successful or not is by comparing course results for two groups, SI attendees and non-attendees. The division of SI attendees and non-attendees is generally done rather arbitrarily by prescribing a minimum number of SI sessions a student has to attend to be considered an SI attendee. Although the SI at