Kevin isn’t on here so I can’t ask him, but I think he’s just turning a party line is causal inference back on itself. I have heard many times that RCTs lack external validity by fiat.
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The problem for me is not whether RCTs have external validity or not but whether that's required for something to be considered a research method. What would we have left then if we expect every method to tick every box?
sep 15, 2025, 9:24 pm • 2 0 • view
Hah, he’s doing a funny inversion: his definition of research comes from this government website that defines human subject research www.ecfr.gov/current/titl... 1/x
sep 15, 2025, 9:28 pm • 2 0 • view
He then goes on to argue about impediments created by IRBs. 2/2
sep 15, 2025, 9:29 pm • 1 0 • view
Which leaves me somewhat unimpressed and unconvinced. Even if it may be *technically* correct under that particular definition, why should that matter?
sep 15, 2025, 9:45 pm • 2 0 • view