neethu
☆    

2009-07-07 15:10
(6193 d 00:31 ago)

Posting: # 3937
Views: 5,513
 

 Sample size for a three period study [Power / Sample Size]

Hai All,

I would like to know how to calculate the sample size for three period pivotal study.

Can anyone help me out?

Thanks & Regards
Nees
Jaime_R
★★  

Barcelona,
2009-07-07 15:27
(6193 d 00:14 ago)

@ neethu
Posting: # 3939
Views: 4,494
 

 Sample size for a three period study

Hi Neethu!

How many treatments? Are you talking about a simple cross-over (three treatments) or a replicate design (two treatments)?

Regards, Jaime
neethu
☆    

2009-07-07 15:34
(6193 d 00:07 ago)

@ Jaime_R
Posting: # 3940
Views: 4,468
 

 Sample size for a three period study

Dear Jaime,

Thanks for your reply... There will be three treatments.

--
Edit: Full quote removed. Please delete anything from the text of the original poster which is not necessary in understanding your answer; see also this post! [Jaime]

Thanks & Regards
Nees
Jaime_R
★★  

Barcelona,
2009-07-07 15:43
(6192 d 23:58 ago)

@ neethu
Posting: # 3941
Views: 4,477
 

 Three period three treatment study

Hi Neethu!

❝ [...] There will be three treatments.


In such a case you assume a common variance. You can aplly the same methods you would use for a conventional 2×2 cross-over.

Regards, Jaime
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