Maybe it’s some legal hack, like maybe in some situations you can’t dismiss unethical research, but you can dismiss fraudulent research… and a research where people were forced to falsely write that their participation was voluntary, is technically fraudulent.
I notice it also makes sure that if the participants know anything at all about the research, they know it’s supposed to be voluntary, even if they’re still forced to sign it, they learn that the law is supposed to be on their side and there is in theory someone they could call for help.
Maybe it’s some legal hack, like maybe in some situations you can’t dismiss unethical research, but you can dismiss fraudulent research… and a research where people were forced to falsely write that their participation was voluntary, is technically fraudulent.
I notice it also makes sure that if the participants know anything at all about the research, they know it’s supposed to be voluntary, even if they’re still forced to sign it, they learn that the law is supposed to be on their side and there is in theory someone they could call for help.