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Dear professor, I'm new to MPlus and I would like to add a moderator variable (achievement level going from 1 to 3) to my multilevel model. I have no idea which syntax I should use. You can find (a part) of the input for the multilevel analysis below: %within% X on achiev1 achiev3 Gender; Y on achiev1 achiev3 Geslacht; ... %between% X on A B C D E; Y on A B C D E; ... Now I would like to know whether the relation X ON A/B/C/D/E is different according to the achievement level of the student. I would thus like to add achievement as a moderating variable at the between level. Could you give me any advice on how to do this? Thank you very much in advance! Kind regards, Sofie |
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The easiest way is to create cluster means for the achievement variables, create products between those and A-E using Define, and include on Between. |
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