I posted a picture of my discussion post; what I'm asking is for you to tell me how to respond to my professor's response to my discussion post: "hi Juliet, within-subjects designs have a lot of advantages, including reducing the required number of participants and increasing statistical power. Could your proposed design be conducted as a within-subjects design? Why or why not? Consider issues like practical limitations, carryover effects, testing effects (practice/fatigue effect), demand characteristics, and history effects