Hi Statalist users
I need your help in estimating the sample size for an interventional study where the baseline employment rate is 43%. An intervention is to plan and anticipate that 30% improvement in the employment rate so expected employment rate would be around 56% (43*30%). I have used the following command in Stata
power pairedproportions 0.43 0.56, corr(0.8)
but getting error
the resulting discordant proportions p12 and p21 must be between 0 and 1
Any help will be highly appreciated.
Thanks
Ashish
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