to add to Toms point:
"I mentioned earlier that the researchers moved the goal posts.
They lowered the threshold of, say, subjective fatigue in order to make it easier, well this is not necessarily the reason they did it but this was the effect of it, it made it easier for patients to be classified as having recovered.
They explained why they did this, because when you do that, when you move the goal posts as the cliché suggests, it looks like cheating.
So they had to defend themselves, and in the written report in the journal they said that the reason they did this is because they pitched too high to begin with. They were asking too much of patients. They were saying that if you had a score of 85, half the population wouldn’t have a score of 85.
It’s what they said, in writing.
And they literally point out, that threshold would mean that approximately half the general working age population would fall outside the normal range. So they said ‘we got it wrong we should never have said 85 so that’s why we’re reducing it to 60’.
But they base this conclusion on prior data showing that the average score was 85. But it was the
mean average.
Now I don’t want to be patronising, but in school we learn the difference between the mean, the median and the mode. And on this scale, this fatigue scale, this general functioning scale, the mean is 85 but the median is close to 100. So it is simply inaccurate to say. most people score either 95 or better on this scale.
It’s inaccurate to conclude that just because the average, the mean average is down at around the 85 point, that this means that half the population are above and half the population are below.
The mean average number of arms per human being is close to 2 but its not quite 2, it’s a little bit below because some people have one arm and some people have no arms. That doesn’t mean that half the population have, are above the average and half the population are below, which means that only half the population have two arms and the other half have some other number. That’s not the way means work.
So they moved the goal posts because they said that half the population would be above this old threshold and half the population would be below so its not fair. That is innumeracy. And innumeracy is, as I say in the book, a socially acceptable form of ignorance. It’s unlike illiteracy. You wouldn’t employ somebody who can’t spell but we regularly employ people who can’t count. It’s a big problem in science and in psychology this is a glaring one."
Brian Hughes
see
https://www.s4me.info/threads/lives...the-greatest-scandals.5821/page-7#post-119200