Can anyone describe the difference between the Mixed and XTMixed commands in STATA? I'm using STATA 14.2, and I get different results when I fit my multi-level model using each command.
Apologies if this is a silly or obvious question - thanks in advance for your help!
Current Stata's help provides some insight here:
xtmixedhas been renamed to mixed.xtmixedcontinues to work but, as of Stata 13, is no longer an official part of Stata. This is the original help file, which we will no longer update, so some links may no longer work.