Drop, Fail, Pass, Continue: Persistence in CS1 and Beyond in Traditional and Inverted Delivery

Much attention has been paid to the failure rate in CS1 and attrition between CS1 and CS2. In our study of 1236 CS1 students, we examine subgroups of students, to find out how characteristics such as prior experience and reason for taking the course influence who drops, fails, or passes, and who continues on to CS2. We also examine whether student characteristics influence outcomes differently in traditional vs. inverted offerings of the course. We find that more students in the inverted offering failed the midterm test, but those who failed were much more likely to either drop the course or recover and ultimately pass the course. While we find no difference between the offerings in the overall drop-fail-pass rates or in the percentage and types of students who go on to take CS2, there is a significant, widely felt, boost in exam grades in the inverted offering.