Answer:
"Taking part in the research is voluntary, but if you choose to take part, you waive the right to legal redress for any research-related injuries"
Explanation:
As you can see from the question above, speculative language is a term related to waiving or appearing to waive any of the subject's legal rights or releases or appearing to release those conducting the negligence search. For this reason, we can conclude that a statement that uses speculative language is "taking part in the research is voluntary, but if you choose to take part, you waive the right to legal redress for any research-related injuries" because this removes the rights of an individual who participated in a research, and take the responsibility of researchers for something they should be responsible for.
