We want to determine if having flexible assignment due dates…
We want to determine if having flexible assignment due dates reduces stress in college classes. In our History of 2020s class, the material is the same, but the due date and late policy differ across two sections of the class. In the intervention group, this class section has flexible assignment due dates and a lighter late policy. In contrast, the control group class section has set due dates and stricter late policy. We say there is a difference between groups when in fact there is not a difference (e.g., reject the null when the null hypothesis is true). What is this known as?