Statistical Details for the Random Coefficient Model

In the Mixed Model personality of the Fit Model platform, the standard random coefficient model specifies a random intercept and slope for each subject. Let yij denote the measurement of the jth observation on the ith subject. Then the random coefficient model can be specified as follows:

where

and

You can reformulate the model to reflect the fixed and random components that are estimated:

where

and

with G and eij defined as above.

Want more information? Have questions? Get answers in the JMP User Community (community.jmp.com).