Rigor and bias are easy to talk about in the abstract, but harder to feel in practice—so let's design a study and watch what our choices do to the result.
In this activity, your goal is to get a sense of the design decisions that keep a study honest—and to see how dropping them can manufacture an effect that isn't real.
Choose a study model and review what it is testing.
Design the study by making four key methodological choices.
See how your choices shaped the result — and whether bias crept in.