Use the following information to answer the two questions below. A researcher investigated whether watching violent films frequently induced nightmares, and whether this differed between females and males. The researcher conducted a between-subjects study and used the number of self-reported nightmares in a month as the dependent variable. Frequency of watching violent films was measured as either: over 15 times a month, between 8 to 14 times a month, between 2 to 7 times a month, or less than 2 times a month. Question 1. How many cells (total number of unique level combinations) does this study have? 0 2 0 4 0 8 O 10 0 6 Question 2. The researcher only found a significant difference between males and females (no main effect of frequency of watching violent films and no interaction). What should the researcher do before interpreting the results for the whole study? Conduct a secondary analysis (comparing group means) to find out if the frequency one watches violent films leads to more nightmares Conduct a secondary analysis (comparing group means) to find out how the means of males and females differ O Look at the marginal mean table to find out how males and females differ in the number of nightmares, and then conclude O Conduct a simple effect analysis to find out if there is a gender effect at each level of the film-watching frequency Conduct a simple effect analysis to find out if there is a violent film watching frequency effect for males and females, respectively