The correlation coefficient as a gateway to radical skepticism:Suppose you calculate that two variables are moderately correlated. For instance, you find that self-reported happiness has a correlation r=0.32 with self-reported willpower, as I found in one of my studies. What are the possible explanations for (or causes of) this? A Causes B - Increasing A is a cause of increasing B but not the reverse. [e.g., more happiness causes more willpower] (2) B Causes A - Increasing B is a cause ...