Which tools with randomization functionality we can use in between-subjects experiments?

02 June 2023 0 7K Report

I am going to collect data for a 2*2 factorial experiment. I am looking for free survey websites in which there are options for randomizing stimuli before showing the questionnaire to the participants. Some colleagues say that websites like Conjointly or PsycoPro might be useful in this matter. Do you know any usable easy-to-use website for doing this experiment?

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