They used a crossover design, so each subject served as their own control. Not a bad choice for trials like this as you gain a lot of statistical power with fewer participants than a parallel-arm, non-crossover design.
I don't think they used crossover design. There is no evidence in the abstract that they used crossover design.
If they used crossover design they should have all participants go through a second trial period where they consume the same diet but with light breakfast and more caloric lunch and dinner. Then they could actually have more insight on the main thesis of their study, i.e. whether bug breakfast alters appetite.
hristov|5 hours ago
If they used crossover design they should have all participants go through a second trial period where they consume the same diet but with light breakfast and more caloric lunch and dinner. Then they could actually have more insight on the main thesis of their study, i.e. whether bug breakfast alters appetite.
benmaraschino|5 hours ago