1. Imagine that the results of the ice cream experiment had been different. Suppose instead that ratings for the ice cream were higher whenever more chocolate chips were used regardless of whether...

1. Imagine that the results of the ice cream experiment had been different. Suppose instead that ratings for the ice cream were higher whenever more chocolate chips were used regardless of whether real or artificial vanilla was used. Would this represent an interaction? Why or why not?

2. What is a source of bias that might be present in the Silvers et al. (2014) experiment?