title:
Introducing Multilevel Modeling by Kreft and de Leeuw.
Page 64, Table 4.2
data:
file = imm23.dat ;
variable:
names = schid stuid ses meanses homework white parented public
ratio percmin math sex race sctype cstr scsize urban region;
cluster = schid;
usevar = math;
within = ; ! level 1 variables here (none)
between = ; ! level 2 variables here (none)
analysis:
type = twolevel random;
estimator = ml;
model:
%within%
math; ! no fixed effects
%between%
math; ! no predictors of intercept