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Exactly, we do not care they are different (usually). We care in what way and how much they are different. Then we care about what possible explanations there m

by nonbel 11y ago

Exactly, we do not care they are different (usually). We care in what way and how much they are different. Then we care about what possible explanations there may be for that difference. I would say an exception is studies of ESP, etc where the existence of any effect would be surprising. However, in practice, everyone just assumes paranormal researchers messed up the experiment somehow. Small effects are not taken seriously even if they are "significant" because there are many explanations for such differences.

loup-vaillant 11y ago
> I would say an exception is studies of ESP Actually, E.T. Jaynes touched that topic a bit, and argued that it's not really an exception: probability theory applies to this phenomenons (or lack thereof) as usual. If I recall correctly, he reached the same conclusion as you just did: if a study looks like it demonstrated an instance of ESP, it probably went wrong.