3 ms·
isn't it because the control and treatment groups are randomised from the same pool?
by anentropic 9y ago
isn't it because the control and treatment groups are randomised from the same pool?
- chiefalchemist 9y agoIt can still be correlation. It's possible you're just attributing something to an attribute you're tracking but that's just coincidence. Without a sense of why, you can't be certain about any conclusions.
- anentropic 9y agoin this case they seemed to expect an effect on the amyloid plaques which cause Alzheimers and dementia (i.e. they bothered to do brain scans, not just cognitive tests)