Dr. David Allison
speaker
936 appearances
1 recordings
1 series
first heard Mar 2026
last heard 31 Mar
Dr. David Allison’s voice in public audio — every appearance, attributed to the second.
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Appearances
And so often they analyze them without taking, without the correct analysis, without taking the clustering into account.
We, my group and I tend to spot those often, but not always.
And then we try to get them corrected if they need to be.
And we've, as a result, we've had several papers corrected, several retracted, meaning the editors have said, this paper is not valid.
We need to take it out.
When you think about that and you look at the
Evidence not for clinical treatment, but for community-based treatment, schools, communities, these kinds of things.
For childhood obesity treatment or prevention with things like mild physical activity or nutrition education in schools, examples like that.
Many of them that are purported to be successful, even when you look at evidence and somebody summarizes it, most of the time they come up, when you summarize all the studies, as essentially no effect.
A few of the meta-analyses say small effect.
Very small, but small.
Now, what if I said, let's take those meta-analyses that combine many studies.
It's a very small effect on average.
And I said, X percent of the studies in there are completely invalid.
That purported to show an effect didn't.
Remove those or erase the data and write the correct data in would even very small become zero.
And so these are examples of where I think we've misled the public.
We have and continue to misspend funds on methods that don't work when we could be investing it either in research-defined methods that do or in some methods we have that do.
We mislead the public, and that's unfair, give false hope.
We distract from doing things that might work.
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