(Haidt and his researchers) asked 2,000 Americans to complete a questionnaire designed to evaluate the six moral foundations. One-third of the group was asked to fill it out as themselves, one-third was asked to fill it out as they thought a typical liberal would, and the final third as a typical conservative would. The researchers found that moderates and conservatives were the most accurate in their answers whether they were pretending to be liberal or conservative. Liberals were the least accurate, particularly if they self-identified as "very liberal."