As someone who dabbles in psychology research (mostly Big Five stuff), I had this same reaction: this is great correlation stuff, but I hardly expect it's casua

As someone who dabbles in psychology research (mostly Big Five stuff), I had this same reaction: this is great correlation stuff, but I hardly expect it's casual. This is my grip with books like "The Seven Habits of Highly Effective People" -- picking up those habits won't make you necessarily effective.