> Methodology: This study was conducted Oct. 11-16 from a representative sample of 978 students nationwide from 2-year and 4-year schools. The margin of error is +/- 3.4 percentage points. The Generation Lab conducts polling using a demographically representative sample frame of college students at community colleges, technical colleges, trade schools and public and private four-year institutions.

Maybe there was some bias they didn't account for; a thousand students isn't that many.