This was my first thought too. Taking the question further—even if, by some reliable polling method, you could draw a Venn diagram of CL and facebook users, wouldn’t there be a lot of selection bias? If, say, 40% of CL users are also on facebook, by definition they’re probably a lot more tolerant of ads than the other 60%.
This was my first thought too. Taking the question further—even if, by some reliable polling method, you could draw a Venn diagram of CL and facebook users, wouldn’t there be a lot of selection bias? If, say, 40% of CL users are also on facebook, by definition they’re probably a lot more tolerant of ads than the other 60%.