36. 1 point NADA Sham Relaxation 2 8 State Anxiety score State Anxiety score State Anxiety score 40 40 40 30 Before Session Aller Session Belove Session Aller Session Belore Session After Session Bassing Timing Classina Timing Based on these boxplot presentations, what sign do you expect the mean anxiety score difference to take on (+,-) for after the session compared to before the session for each of the three randomization groups? (don't overthink this) a. positive D. negative 37 1 point The authors used the graphic alone to demonstrate the study findings. Why did they not need to first adjust for potential confounders? a. Because the authors forgot to measure the potential confouding variables : out of sight out of mind. D. Because boxplots automatically adjust for potential confounders. c. Because the study design, a randomized trial, minimizes the potential for confounding