I have a date set on several repeated measures on different days.    Date     Side    measurements 1/2          x            21.2 1/2          x            22.3 1/2          y            20.0 1/6          x            21.0 1/6          y            19.7 1/8          x            20.1 1/8          y            22.2 1/8          y            24.7   like so. I am using proc glm, but I am not sure if I have done it correctly. I tried to do the calculation manually and get the pooled standard deviation in excel.   proc glm data= have; class side; model measurements = side date; run; What do I have to use to get the within subject standard deviation, coefficient of variation, coefficient of repeatability and ICC of each side; not combined.   Any help is much appreciated.  Thank you ... View more