In this episode of Progressively Incorrect, Zach Groshell and Bradley Arnold discuss "On Students’ (Mis)judgments of Learning and Teaching Effectiveness" by Shana Carpenter and colleagues. While it may be popular to collect student opinion on instructional matters, there is often a conflict between what students think is effective and what is actually effective. We discuss many of the ways that student opinion can have negative or positive effects on the quality of students' education.