https://communities.sas.com/t5/Statistical-Procedures/Power-and-sample-size-calculation/m-p/33684#M1391 I'm looking for software that will calculate power and sample sizes for a matched case control study. Any suggestions? Tue, 22 Dec 2009 14:40:40 GMT deleted_user 2009-12-22T14:40:40Z https://communities.sas.com/t5/Statistical-Procedures/Power-and-sample-size-calculation/m-p/33684#M1391 I'm looking for software that will calculate power and sample sizes for a matched case control study. Any suggestions? Tue, 22 Dec 2009 14:40:40 GMT https://communities.sas.com/t5/Statistical-Procedures/Power-and-sample-size-calculation/m-p/33684#M1391 deleted_user 2009-12-22T14:40:40Z https://communities.sas.com/t5/Statistical-Procedures/Power-and-sample-size-calculation/m-p/33685#M1392 The SAS Power and Sample Size procedures will do that. There is a nice interface in 9.2. You can also use Russ Lenth's web site ( <A href="http://www.stat.uiowa.edu/~rlenth/Power/" target="_blank">http://www.stat.uiowa.edu/~rlenth/Power/</A> ).<BR /> <BR /> The sample size computation for a matched case-control study can be done with a one-sample test where the effect-size is the difference between the two groups.<BR /> <BR /> Doc Muhlbaier<BR /> Duke Wed, 23 Dec 2009 15:31:14 GMT https://communities.sas.com/t5/Statistical-Procedures/Power-and-sample-size-calculation/m-p/33685#M1392 Doc_Duke 2009-12-23T15:31:14Z