Hello all,

I have data from a continuous variable, I have 47 data points. These data points comes from 20 subjects. Some contributed 2 data points, while the others only 1.

I want the variance (and SD) of the data, but obviously I need to take into account the fact that some data points are repeated measures, and I would like to calculate the inter correlation within a subject. I do not have any fixed effects, and any attempt to get what I need in SAS or NCSS, has failed.

Which analysis should I use ?

Thanks !