Sample size calculation in an experim...

Sample size calculation in an experimental study

Posted in the Epidemiology Forum


Colombo, Sri Lanka

#1 Aug 14, 2012
i'm planning to conduct an experimental study and i'm little confused as to how i should decide the sample size for the 2 groups.

there are so many confusing equations in the net, but as person with little epidemiology knowledge i'm finding it difficult understand.

please tell me an easy way of calculation the sample size.
Roger D

Atlanta, GA

#2 Feb 10, 2014
Best I've seen is these, very helpful:

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