https://communities.sas.com/t5/SAS-Procedures/one-side-test/m-p/632669#M77830 <P>You take the p-value for the coefficient of B, and you double it.</P> Tue, 17 Mar 2020 13:59:33 GMT PaigeMiller 2020-03-17T13:59:33Z https://communities.sas.com/t5/SAS-Procedures/one-side-test/m-p/632656#M77827 <P>&nbsp;</P><PRE><CODE class=" language-sas">proc reg data = data; model a = b c d; test b=0; run;</CODE></PRE><P>&nbsp;</P><P><SPAN>Hello, I want to do a one side test on SAS, in fact I want to test if 'b' has a positive effect on 'a' but I don't know how to do it with this code. Thanks for your help !</SPAN></P> Tue, 17 Mar 2020 13:34:25 GMT https://communities.sas.com/t5/SAS-Procedures/one-side-test/m-p/632656#M77827 lulube 2020-03-17T13:34:25Z https://communities.sas.com/t5/SAS-Procedures/one-side-test/m-p/632669#M77830 <P>You take the p-value for the coefficient of B, and you double it.</P> Tue, 17 Mar 2020 13:59:33 GMT https://communities.sas.com/t5/SAS-Procedures/one-side-test/m-p/632669#M77830 PaigeMiller 2020-03-17T13:59:33Z