To make this a fair test you'd need two pools of subjects, one of which all had vasectomies and one of which had no vasectomies. You'd toss a coin to decide from which pool to present a subject to Anita. If you just pick a representative selection of the male public you're not going to get anywhere near 50:50
Making the test fair is not the objective; making it meaningful is.
That is to say, specific to vasectomies:
1) VFF would wear ear plugs
2) No communication between VFF and test subject of any kind allowed
- Subject walk in, stands in silence for a predetermined time, leaves
3) VFF would not have direct line of sight; blindfold, dark/black room, curtain, etc.
4) Test subjects would be:
- Male (no specific age or marital status)
- Female (no specific age or marital status)
- None at all
- Nobody she has ever met before (within reasonable certainty), thus eliminating her local Skeptics group. Why, because after meeting them she would gather a certain amount of cold reading information about the potential test pool (ie. gender, age, marital status).
There you have it, a 4 step protocol that if followed would provide reasonable/credible proof of her special powers if her accuracy meets or exceeds claimed mark.
If she
truly has these special powers, she'd have no problems in that she can see through clothing materials and the blindfold, dark/black room, curtain would eliminate any interference from her own eye lids.
I predict this type of protocol, where she can not do any type of cold reading (though she claims she does not cold read), is something she will never agree to.