Test 100s of participants within minutes from around the world for a fraction of the normal cost. Xperiment has been tried, tested and fully integrated with Mechanical Turk. Participants are given their unique ‘I have finished the study within a respectable amount of time’ code after completing the study to give to MTurk.
“…Mechanical Turk is a reliable alternative to using college populations to obtain survey data — and may even be a better alternative than traditional Internet surveys. For just pennies, people will complete even lengthy questionnaires in their efforts to help others with their projects and research. While more research needs to be done to confirm these findings, MTurk appears to be a marketplace more psychology researchers should be considering as they prepare their next study.” (http://goo.gl/sAqjE, – blog article by Grohol 2011).
Berinsky, A., Huber, G.A. & Lenz, G.S. (in press). Using Mechanical Turk as a Subject Recruitment Tool for Experimental Research. Political Analysis pdf
Mason, W. & Suri, S. (2012). Conducting behavioural research on Amazon’s Mechanical Turk. Behavior Research Methods, 44, 1-23. pdf