Comparison of Platforms for Online Studies

	Qualtrics	Google Forms	SurveyMonkey	PsychoPy	Ibex	Dallinger	webDMDX	Inquisit Web	LabVanced	jsPsych	psiTurk + jsPsych	Pushkin
Free	Yes	Yes	No	Yes	Yes	Yes	Yes	No	No	Yes	Yes	Yes
Open-source/customizable	No	No	No	Yes	Yes	Yes	Yes	No	No	Yes	Yes	Yes
Graphical User Interface	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	No	No	Yes
Scalable	Yes	No	No	No	No	Yes	NA	Yes	Yes	No	No	Yes
Required Platform	Qualtrics	Google	SurveyMonkey	No	No	No	AMT	No	No	No	AMT	No
Social Media	No	No	Yes	No	No	Under development	No	No	No	No	No	Yes
Display Video	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Present Audio	Yes	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Reaction Times	No	No	No	No	Yes	No	Yes	Yes	Yes	Yes	Yes	Yes
Eye tracking	No	No	No	No	No	No	No	No	Under development	No	No	Yes
Record Audio	No	No	No	No	No	No	Yes	No	Under development	No	No	Yes
Randomization/Counterbalancing	Limited	No	Limited	Limited	Limited	No	Limited	Limited	Yes	Limited	Yes	Yes
Multi-subject interaction	No	No	No	No	No	Yes	No	No	Under development	No	No	Yes
Contingent Qs	Yes	Yes	Yes	Yes	No	No	Yes	Yes	Under development	Yes	Yes	Yes
OED	No	No	No	No	No	Yes	No	No	No	No	No	Yes
Active Learning	No	No	No	No	No	No	No	No	No	No	No	Yes