" asking about sampling errors and margins of error, debating if the number is rising or falling, believing, doubting, analyzing, dissecting—without taking the time to understand the first and most obvious fact: What is being measured, or counted? What definition is being used? Yet while this pitfall is common, it doesn’t seem to have acquired a name. My suggestion is “premature enumeration. "
― Tim Harford , The Data Detective: Ten Easy Rules to Make Sense of Statistics