title: Nonnaïveté among Amazon Mechanical Turk workers: consequences and solutions for behavioral researchers.
abstract: Crowdsourcing services--particularly Amazon Mechanical Turk--have made it easy for behavioral scientists to recruit research participants. However, researchers have overlooked crucial differences between crowdsourcing and traditional recruitment methods that provide unique opportunities and challenges. We show that crowdsourced workers are likely to participate across multiple related experiments and that researchers are overzealous in the exclusion of research participants. We describe how both of these problems can be avoided using advanced interface features that also allow prescreening and longitudinal data collection. Using these techniques can minimize the effects of previously ignored drawbacks and expand the scope of crowdsourcing as a tool for psychological research.
authors.affiliation: Woodrow Wilson School of Public Affairs, Princeton University, Princeton, NJ, USA, jjchandl@umich.edu.
authors.forename: Jesse
authors.initials: J
authors.lastname: Chandler
authors.forename: Pam
authors.initials: P
authors.lastname: Mueller
authors.forename: Gabriele
authors.initials: G
authors.lastname: Paolacci
mesh_terms: D000704:Analysis of Variance; D035841:Behavioral Research / Q000379:methods*; D063045:Crowdsourcing / Q000379:methods*; D003625:Data Collection / Q000379:methods* / Q000592:standards*; D057220:Health Literacy; D064368:Healthy Volunteers; D006801:Humans; D033181:Information Dissemination; D020407:Internet; D008137:Longitudinal Studies; D008297:Male; D011159:Population Surveillance / Q000379:methods*; D011214:Practice, Psychological; D012108:Research Personnel; D035842:Research Subjects / Q000523:psychology*; D013647:Task Performance and Analysis; D018910:Video Games / Q000523:psychology / Q000706:statistics & numerical data