. Author manuscript; available in PMC: 2013 Jun 12.

Published in final edited form as: J Subst Abuse Treat. 2010 Sep 15;40(1):3–17. doi: 10.1016/j.jsat.2010.07.010

Table 2.

Population Parameters Derived from Table 1 Sufficient Statistics

Effects	Parameters
Mean of SS/WHE Dummy Variable	.500
Variance of SS/WHE Dummy Indicator	.250
Fixed Effects
In-Treatment Slope (ITS)	.178
Post-Treatment Slope (PTS)	.138
Post-Treatment Intercept (PTI)	-.075
SS/WHE differences in ITS	-.209
SS/WHE differences in PTS	.110
SS/WHE differences in PTI	-.261
Individual-Level Random Effects
In-Treatment Slope (ITS)	.201
Post-Treatment Slope (PTS)	.058
Post-Treatment Intercept (PTI)	.222
Within-Individual Residual^a	.204^b
Site-Level Random Effects
In-Treatment Slope (ITS)	.0041
Post-Treatment Slope (PTS)	.0012
Post-Treatment Intercept (PTI)	.0045

Notes.

Constrained to equality across all timepoints.

Average of the treatment condition-specific values. ITS = in-treatment slope. PTS = post-treatment slope. PTI = post-treatment intercept.