Rhetorical bestiary: Survey data

Survey data is well known to be an imperfect measure of the truth. The many pitfalls of survey data mean that the numbers must be taken with some healthy skepticism.
Evidence-free assertions that black people are three times more dishonest than white people in answering surveys about drug use do not a healthy skepticism make.

@voxdotcom These figures based on self-reported drug use are notoriously unreliable. I thought it was your job to report "context"?

— Billy Chav (@billy_chav) February 5, 2015