PSY393 Factorials application assignment Does the average number of days with cold symptoms differ by amount of vitamin C taken and the average number of hours slept each week? Participants were randomly assigned to be in one of the three vitamin C conditions for a month (placebo, low dose, high dose). Participants also kept a daily log of hours slept each night; hours of sleep were averaged for the month and participants were put into two groups (less than 8 hours, 8 hours or more). At the end of the study, participants reported the number of cold/health symptoms experienced during the month. Results found no effect of vitamin C, only that participants who got more sleep had fewer days with cold symptoms. a. How many IVs are in this study? a. For each IV, state the name, how many levels it has, and whether it is a true- (manipulated) or quasi- (measured) IV. Explain your answers. b. What is the DV? c. Is this a between, within, or mixed design? How do you know? d. Write out the design in the following format: X (e.g., 2X2, 4X3, 2X3X3) - e. How many possible IV main effects are there in this study? What are they? f. How many possible IV interactions are there in this study? What are they? g. How many possible conditions are there in this study? Write out all of them. h. What are the results of this study? Are the results of the study a main effect or interaction? How do you know?