https://communities.sas.com/t5/SAS-Procedures/repeated-repeated-measures-analysis/m-p/562458#M74948 <P>Hello,</P><P>&nbsp;</P><P>I am wondering if anyone here could provide some insight as to the correct/best procedure to use for a repeated repeated measures design. I know how to handle one set of repeated measures (i.e. if I collecte data on a subject on multiple days over the course of a longitudinal study.&nbsp; But I am not sure what is the proper procedure for handling a situation in which I have multiple layers of repeated measures within a subject (for example, if I collected data on a given subject every 4 hours over a 24-hr period and then repeated that same data collection protocol on multiple days over the course of a longitudinal study).&nbsp; Any input here - code, link, point me to a procedure that I can read up on - anything would be helpful.</P><P>&nbsp;</P><P>Thank you in advance.</P> Thu, 30 May 2019 01:30:58 GMT jrw187 2019-05-30T01:30:58Z https://communities.sas.com/t5/SAS-Procedures/repeated-repeated-measures-analysis/m-p/562458#M74948 <P>Hello,</P><P>&nbsp;</P><P>I am wondering if anyone here could provide some insight as to the correct/best procedure to use for a repeated repeated measures design. I know how to handle one set of repeated measures (i.e. if I collecte data on a subject on multiple days over the course of a longitudinal study.&nbsp; But I am not sure what is the proper procedure for handling a situation in which I have multiple layers of repeated measures within a subject (for example, if I collected data on a given subject every 4 hours over a 24-hr period and then repeated that same data collection protocol on multiple days over the course of a longitudinal study).&nbsp; Any input here - code, link, point me to a procedure that I can read up on - anything would be helpful.</P><P>&nbsp;</P><P>Thank you in advance.</P> Thu, 30 May 2019 01:30:58 GMT https://communities.sas.com/t5/SAS-Procedures/repeated-repeated-measures-analysis/m-p/562458#M74948 jrw187 2019-05-30T01:30:58Z https://communities.sas.com/t5/SAS-Procedures/repeated-repeated-measures-analysis/m-p/562468#M74949 <P>Sounds like a doubly repeated measures design. Maybe take a look at this document:</P> <P><A href="https://support.sas.com/resources/papers/proceedings15/SAS1919-2015.pdf" target="_blank">https://support.sas.com/resources/papers/proceedings15/SAS1919-2015.pdf</A></P> <P>&nbsp;</P> <P>&nbsp;</P> Thu, 30 May 2019 04:36:24 GMT https://communities.sas.com/t5/SAS-Procedures/repeated-repeated-measures-analysis/m-p/562468#M74949 cminard 2019-05-30T04:36:24Z