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In Reply to: Re: wrong question... posted by dbphd on November 10, 2006 at 02:43:10:
The point I am making is you don't ask the PATIENTS which medication they are on. That is why it is not circular. The main researcher knows of course, as he/she is the one keeping track.Clearly, you record who gets what, in a fashion so that no one knows what they are on, just as you describe. You ask the patients "how do you feel", NOT can you tell which medication are you on.
The number of "feel better", side effects and so forth are tabulated, run through a statisical analysis to determine if the medication is, in fact, effective. There are patients who say the medication has no effect, just as there are others who say the placebo works great. The question then becomes are these rates difference from chance, as determined by statistical analysis.
Back to my point, in a blind test of equipment, you should be asking the participants, which sound do you like better, not can you tell wire A from wire B.
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Follow Ups
- Re: wrong question... - Estes 06:04:48 11/10/06 (2)
- Re: wrong question... - dbphd 18:59:04 11/10/06 (1)
- Re: wrong question... - Estes 05:05:20 11/11/06 (0)
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