[QUOTE=DMC]
No there’s not in the scenario as given.
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There is. This is true of *any *claim. Those are the avenues by which you would be able to determine credibility.
[QUOTE=DMC]
…in The frequency of a claimed event having occurred has absolutely no bearing on the credibility of the claimant,
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Of course, it does. If two people you don’t know call you on the phone and one says “I’ve been to Paris” and the other says “I’ve been to the moon”, in a vacuum, one of those claims is more credible that the other. If I apply the condition that only one of them is telling the truth and you have no other information to go on and you have to choose one, you’d be foolish not to conclude that the claim of having been to Paris is more credible. You just have to play the odds. Remember, the conditions imposed are 1) one is lying 2) at this point, as far as you know the people themselves are equally credible 3) you have to choose which one you think might be lying.
[QUOTE=DMC]
…but if you think it does, you’ll be able to answer my two little questions above. Give it a shot.
[/QUOTE]
I think you mean this.
[QUOTE=DMC]
Assume that 99% of all rapes are white men raping white women, and 1% of all rapes are white men raping black women. Two women come forward and claim to have been raped, one white, the other black. What are the odds that the white woman is lying? What are the odds that the black woman is lying?
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In the individual cases, you have to assume the credibility of both people to be equal. The way you constructed the question (with such a large disparity in percentages) is helpful, but with the limited information given you can’t put an actual number on it. But it is safe to say that the odds of the white woman being the one that was raped are higher.
Let’s add a third person to your scenario: a white male who claims to have been raped. Wouldn’t you say that his claim is less credible—less likely to be true—than either of the two women? How about if he claims to have been raped by a woman?
The way I see it, while we have to approach things assumiing they are all equally credible as people, the credibility of their claims in this instance are rankable:
Whaite woman
Black woman
Male raped by male
Male raped by female
Why? Simply because this is how the particular acts rank in incidence in the real world.
[QUOTE=DMC]
The theory posited and defended in the other thread was that the black claimant had less credibility because white on black rape is rarer than white on white rape.
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She has less credibility only in regards to this particular claim. Not as a person in the general sense. If we change the question, she could easily be the one with the more credible claim. For instance, if the claim is “I have been the victim of racial bigotry.”
[QUOTE=DMC]
The only metric that affects the credibility of a claim is the frequency of which said claim is lied about. If you have evidence that black women are more likely to falsely accuse white men of rape than white women are, then I’ll give the black woman less credibility. You won’t be doing so, so she’s equally credible.
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But all that would allow you to do is say “those who have proven themselves to be less credible are less credible”. That’s a given. The scenario in question is exploring a different situation, one in which the the credibility of each person is unknowable. And that does not render you unable to judge at all. You can judge based solely on the credibility of the claim itself.