Do you think JREF would accept a challenge which gives 5% better than chance?
I can't say. Seriously, these days there's a lot of things I couldn't predict on what the JREF would or would not do.
Would I do it? As you say, it would require quite an involved protocol. Then again, I would need to look into it, decide on a protocol which was satisfactory and would produce some sort of result which we both were happy with.
If it did, how on earth could it be tested? For a 5% chance to become evident, there'd have to be literally hundreds of tests. If you want, I can e mail andyandy and get him to work it out, but it's going to be a prohibitively large number.
Honestly it would be interesting to know what the options would be for such a test. Given my knowledge of statistics I'd be happier having expert advice on the matter.
I don't think there's any strawman involved here, they're just exploiting a loophole.
What loophole? As we both agree, no contender for the challenge has ever applied on such grounds, and Randi has never said it proves anything. It is merely evidence against such a thing.
I'm sure if Randi was asked if the challenge shows definitively that subtle psychic powers are impossible, he'd not flatly agree.
I have to say that I find it hard to get too upset at these guys - they're very much the paranormal equivalent of liberal Anglicans; just an itty bit of psi/god is enough for them.
All well and good, and on that front I can't disagree. Does the challenge have anything to say on 'subtle' psychic displays? No. It also can't say anything about anybody who has never applied for it. However, psychics also don't make 'subtle' claims. On that front, it's exactly what it is meant to be - a case of 'put your money where your mouth is'.
I agree with you that the challenge doesn't deny paranormality, but Randi does, and pretty aggressively too, so you can't blame them for having a go. Shows he's been getting to them that they should be so snarky about it.
I'd be the first to agree that Randi's demeanour is far from cordial or conducive to open debate. However, I can't say I've ever heard him say the challenge denies the possibility paranormality; only that it reduces the likelihood of people who claim such powers being correct. I could well change my mind if you produce an unambigious quote.
Athon