Mixed model setup

Welcome to the forum for REALCOM users. Feel free to post your question about REALCOM here. The Centre for Multilevel Modelling take no responsibility for the accuracy of these posts, we are unable to monitor them closely. Do go ahead and post your question and thank you in advance if you find the time to post any answers!

Go REALCOM (Developing multilevel models for REAListically COMplex social science data) >> http://www.bristol.ac.uk/cmm/software/realcom/
Post Reply
shakespeare
Posts: 70
Joined: Thu Feb 14, 2013 11:12 pm

Mixed model setup

Post by shakespeare »

Just want to make sure I'm setting up REALCOM correctly. Say I have a mixed model with an outcome y and a location variable, site, under which individual patients are clustered. I'm treating site as random, and as the subject in the analysis. As such, I will declare it as a level 1+2 variable in my set up. Now, assume I also have a continuous variable that I wish to consider as random representing a patient characteristic (e.g., weight, temperature, etc.). I want to treat this variable as a random slope which is the same as saying that it is random at level 1 (it describes the patient, not the site). So, I would declare this as a level 1 variable in my set up, correct? My goal would be to conduct an analysis with random intercepts and slopes. I think this is the correct analysis if site is both random and the subject, and the covariate describing level 1 units is also random.
ChrisCharlton
Posts: 1353
Joined: Mon Oct 19, 2009 10:34 am

Re: Mixed model setup

Post by ChrisCharlton »

As this is a slightly conceptual question you might want to ask it on the missing data forum (https://groups.google.com/forum/#!forum/missing-data) if you don't get an answer here.
Post Reply