https://communities.sas.com/t5/Statistical-Procedures/help-interpreting-interaction-of-2-dichotomous-variables-with/m-p/243082#M12799 <P>Does anyone have a reference that gives step by step directions on how to interpret an interaction with effect coding. &nbsp;There is lots of material out there on how to do it with reference group/dummy coding, but nothing detailed on effect coding. &nbsp;I'm particularly interested in the context of logistic or survival models,&nbsp;although it is probably not much different. &nbsp;The two variables involved in the interaction need only have 2 levels like male/female interacted with older/younger or something like that. &nbsp;Thank you.&nbsp;</P> Tue, 12 Jan 2016 22:25:08 GMT proctice 2016-01-12T22:25:08Z https://communities.sas.com/t5/Statistical-Procedures/help-interpreting-interaction-of-2-dichotomous-variables-with/m-p/243082#M12799 <P>Does anyone have a reference that gives step by step directions on how to interpret an interaction with effect coding. &nbsp;There is lots of material out there on how to do it with reference group/dummy coding, but nothing detailed on effect coding. &nbsp;I'm particularly interested in the context of logistic or survival models,&nbsp;although it is probably not much different. &nbsp;The two variables involved in the interaction need only have 2 levels like male/female interacted with older/younger or something like that. &nbsp;Thank you.&nbsp;</P> Tue, 12 Jan 2016 22:25:08 GMT https://communities.sas.com/t5/Statistical-Procedures/help-interpreting-interaction-of-2-dichotomous-variables-with/m-p/243082#M12799 proctice 2016-01-12T22:25:08Z https://communities.sas.com/t5/Statistical-Procedures/help-interpreting-interaction-of-2-dichotomous-variables-with/m-p/243122#M12801 <P>How about this?</P> <P>&nbsp;</P> <P><A href="http://www.ats.ucla.edu/stat/sas/output/sas_logit_output.htm" target="_blank">http://www.ats.ucla.edu/stat/sas/output/sas_logit_output.htm</A></P> <P>&nbsp;</P> <P>Norman.</P> Wed, 13 Jan 2016 05:41:32 GMT https://communities.sas.com/t5/Statistical-Procedures/help-interpreting-interaction-of-2-dichotomous-variables-with/m-p/243122#M12801 Norman21 2016-01-13T05:41:32Z