By Ballpark Research Labs - Prolific Researcher Reviews

Screen out in study with no compensation whatsoever, just a message saying the following with no way to proceed: "Sorry, it looks like you're not the right fit We're looking for a specific group of participants for this research. Thank you for your time and interest. You can now close this page"

I did my task honestly and completed all the requirements of the researcher; still, the researcher rejected my submission. Without any discussion or giving me any chance for clarification. This clearly shows that the researcher's intention was not good.