choosing worker type in JATOS
I am designing an experiment that will be run on JATOS and I am not sure what kind of worker type to choose. Since my experiment will be long, I want to give the participants the possibility of not doing it all at once. I have thought about two ways of doing this: (1) splitting my study in two smaller studies each with two (different) components of my experiment (2) having 4 components in my task and allowing multiple entries.
For Option (1) I would give my participants Personal Single worker links, but the problem is that I will not be able to link the participants across components if these are split across two experiments. Is this true?
In option (2) I would provide the participants with Personal Multiple Worker links, so that they would be able to come back. But, as I gather from the documentation, this type is designed for a longitudinal type of study, the participants would have access to the already completed components. Is there a way to block the previously components completed. Does the "allow reload" option help with this? If I were to uncheck it, would this mean that when they return the coupled component would not be available?
Also, does JATOS save in the results the Personal link that the participants used to access the task? I am asking this because I will have a pre-study with the info and consent form, and if the participant consents all that they will do is provide me their email and I will then send the personal link there. Upon completion, I will send them a gift card to that email. Since I do not want them to insert this email anywhere in the actual task, but I need to know who has completed it, will I be able to tell which Personal link completed the task? As I will have insight which link corresponds to chick email, I will be able to send the gift cards accordingly.