I'm creating an online questionnaire using microtask crowdsourcing service e.g. Amazon Mechanical Turk, but I'm stuck with the questionnaire design that best suits my analysis.
I appreciate if you have a SE site recommendation for this type of crowdsourcing task design question.
Edit: The questionnaire can be summarized as follows: Workers watch several short time animations and answer which one is best. I'm wondering the result would be different if all animations are aligned and presented at the same moment, or one by one.