Saw this at work today. They want to look into stress in men who work in the NHS. However, participants only need to identify as a man. Study is unreliable before it starts, isn't it?
Got me thinking though. Just say they found a potential cure / vaccine for cervical cancer. Start a trial but participants only need to identify as a woman. A significant number of men who say they are women may sign up. Say the medicine cures / protects 99.99% of true women against cervical cancer but kills over 90% of men who take it.
Do you think that common sense would prevail or would the medicine be deemed a failure?