Support Member
The Mixed models are available on Add on module Advanced Statistics. If you do not have the dialogs under "Analyze" your license does not include this add on and you need to purchase it or ask your university to expand your code with this add on.
Open a new syntax window with File - New - Syntax and run below command
SHOW LICENSE.
If the output Table shows only base modules but not "Advanced Statistics" your license does not include this add on, sorry.
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