Date:         Wed, 18 Jul 2007 14:00:49 -0400
Reply-To:     Alex Graham <grahaminaustralia7@YAHOO.COM.AU>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Alex Graham <grahaminaustralia7@YAHOO.COM.AU>
Subject:      Mediation

Hi Group,
  I am attempting to examine direct effect and mediation effect (X-->M-->Y)
in a repeated measures setup. X is Continuous, M is binary, and Y is
continuous in measure. All 3 variables(including other controlling
variables) are measured  7 times for 400 individuals. I am interested in
testing purely the direct effect of X at year t on Y at t+1 and mediated
effect of M at year t on Y at t+1. Is there any SAS procedures that allow
to do this type of analysis for estimating and testing the direct &
indirect effects in a repeated measures setup ? Are there any references
that would help me with this problem ?

Thank you.
Alex