Hello Scholars,Pls for an impact assesment of a program intervention,what is the acceptable ratio of sample size of treated and control grp using PSM?

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David Eugene Booth

The ratio is not important it is the two sample sizes separately that are important. See Schaefer et al Elementary Survey Sampling in the z-library.

Best wishes, David Booth

PS I forgot to mention that ease of analysis is of little or no importance to serious research.. Making a useful contribution is. D. Booth