Are you for real? Maximizing participant eligibility on Amazon's Mechanical Turk.

CROWDSOURCING; MEDICAL decision making; ELIGIBILITY (Social aspects); MEDICAL research; HUMAN research subjects

To minimize participant misrepresentation in Mechanical Turk samples, researchers can ensure recruitment of a broader sample as a first step a and implement a brief screening instrument to identify the specific population of interest. Other suggestions include the use of content-knowledge items and detection of virtual private servers