Regarding how Ford understood the question, it would not have been reasonable to interpret it in a way that would make what Merrick described not require an affirmative answer. In fact, unless he lied, the previous question should have had an affirmative answer as well. Take a look at the exchange (
bold mine).
https://www.washingtonpost.com/news...nscript/?noredirect=on&utm_term=.2f7866e40a54
Compare this to what Merrick said:
https://www.nytimes.com/2018/10/03/us/politics/blasey-ford-republicans-kavanaugh.html
“I witnessed Dr. Ford help McLean prepare for a potential polygraph exam,” the man said in the statement. “Dr. Ford explained in detail what to expect, how polygraphs worked and helped McLean become familiar and less nervous about the exam.”
There is no reasonable way in which that description might be interepreted as not fitting the criteria in the bolded questions above.
But moreover, even if Ford had not understood the questions properly - which, given their clarity, would be her fault -, the fact is that
after Merrick's statement was made public (officially, his name isn't public, but that's not the point), his statement was explicitly rejected by McLean and Ford's attorneys:
Ms. McLean, a former F.B.I. agent, denied the assertion on Wednesday. “I have never had Christine Blasey Ford, or anybody else, prepare me, or provide any other type of assistance whatsoever in connection with any polygraph exam I have taken at any time,” she said in a statement.
Dr. Blasey’s camp also rejected the account. “She stands by her testimony,” a member of her legal team said in a statement.
So, there is no issue of interpretation. There is someone who lied in a sworn statement and/or under oath. We do not know who.
As to your other point, regarding potential "ethical obligation under ethics guidelines for psychologists", I disagree, because:
1. She does not have any such guidelines. He is a research psychologists. The professional guidelines apply to her job, but she was not doing research.
2. Her boyfriend was there - or else, he was lying. If he was there, neither Ford nor McLean could reasonably think there was any confidentiality. But then again, she already must have known that. Else, he lied and committed a felony.
3. She was under an obligation to tell the truth before the Senate. She either knew or should have known that at the time. But her attorneys certainly knew that, and continued to deny Merrick's claims.
4. McLean kept denying it. She is no psychologist. If they're lying, they're falsely accusing Merrick of lying and committing a felony - for all intents and purposes, if not directly. On the other hand, if he is lying, he's committed a felony.
I don't know who did it, but for sure
someone lied and committed at least one felony here.
Don2 (Don1 Revised) said:
In any case, I'm not seeing how this is relevant to anything strongly against her testimony unless you want to say she deliberately is making something up and fooled the polygraph as part of a conspiracy [by George Soros] which I don't believe because it's silly.
It undermines her credibility. There is a reasonable chance that she is lying about that, and further, she keeps accusing an innocent man of what would be a felony.
Of course, there is also a reasonable chance that she is telling the truth, Merrick is lying, and he is trying for whatever reason to derail her case. But that we don't know which one is factored into the probabilistic assessment for the whole thing, considering the probability of her willingness to falsely accuse people of felonies. Obviously, Merrick's credibility takes a hit as well.
That said, I don't think this is decisive or required to conclude there is not a sufficient case here (as I mentioned, you can see Mitchell's analysis for more details).