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Need help with Fisher's z test for comparing 2 correlations

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Need help with Fisher's z test for comparing 2 correlations

Hello,

I have successfully managed to run 2 spearman correlations for 2 independent samples looking at the same variables.  I am, however, having trouble using Fisher's z test in order to compare these 2 groups.  Below is the syntax and error messages I am receiving.

data five ;

     merge WSW keep=Nobs ZVal

                         ----

                         22

                         201

                                 rename=(Nobs=n1 ZVal=z1))

                                 -------

                                 22    22

                                 201   76

ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string, (, -, :, ;, END, _DATA_, _LAST_,_NULL_.

ERROR 201-322: The option is not recognized and will be ignored.

ERROR 76-322: Syntax error, statement will be ignored.

               WSM keep=Nobs ZVal

                                 rename=(Nobs=n2 ZVal=z2));

     variance = 1/(n1-3) + 1/(n2-3);

     z = (z1 - z2) / sqrt( variance );

     pval = probnorm(z);

     if (pval > 0.5) then pval = 1 - pval;

     pval = 2*pval;

run;

NOTE: The SAS System stopped processing this step because of errors

Please help!


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‎09-30-2013 08:46 AM
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Posts: 1,913

Re: Need help with Fisher's z test for comparing 2 correlations

merge WSW(keep=Nobs ZVal rename=(Nobs=n1 ZVal=z1)) WSM(keep=Nobs ZVal rename=(Nobs=n2 ZVal=z2));

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‎09-30-2013 08:46 AM
Trusted Advisor
Posts: 1,913

Re: Need help with Fisher's z test for comparing 2 correlations

merge WSW(keep=Nobs ZVal rename=(Nobs=n1 ZVal=z1)) WSM(keep=Nobs ZVal rename=(Nobs=n2 ZVal=z2));

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