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st: Re: R: Minimal Detectable Difference


From   Lars Folkestad <[email protected]>
To   "[email protected]" <[email protected]>
Subject   st: Re: R: Minimal Detectable Difference
Date   Tue, 5 Jun 2012 14:41:50 +0200

That is what i ended up doing. But i hoped there was a nicer/smerter/more
standardized way to do it.
lars

Den 05/06/12 14.06 skrev "[email protected]"
<[email protected]>:

>
>
>
>Lars can probably simulate some scenarios with -sampsi-. I find this
>approach particularly useful when the limited number of participants
>available is due to budget constraints (as it is often the case, sadly).
>Kindest Regards,
>Carlo
>
>
>-----Messaggio originale-----
>Da: [email protected]
>[mailto:[email protected]] Per conto di Lars Folkestad
>Inviato: martedì 5 giugno 2012 13:39
>A: [email protected]
>Oggetto: st: Minimal Detectable Difference
>
>Dear List
>
>This might be a bit more of a stats question than a stata question.
>
>I am about to do a cross sectional study comparing two groups regarding a
>measured continous variable.
>I know the the variance of the measurement. No one has ever investigated
>these groups before using this or similar machines. For practical reasons
>i
>only have a limited number of participants available for this project. I
>am
>now wondering what the minimal detectable difference between the two
>groups
>are with the number of participants i have available.
>
>I will use a t-test (paired, seeing the two groups are matched)
>
>How do i calculate this using stata?
>
>lars
>
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