Three-level longitudinal ML model_err... PreviousNext
Mplus Discussion > Multilevel Data/Complex Sample >
Message/Author
 Jakob Stollberger posted on Wednesday, January 21, 2015 - 4:04 am
Dear Madam or Sir,

I am trying to do a three-level analysis with diary data where L1= occasion (3 times a day) L2= day (5 days) , and L3 = Person (44).

I got the following error message:

*** ERROR
One or more between-level variables have variation within a cluster for
one or more DAY clusters. Check your data and format statement.

Between Cluster ID with variation in this variable
Variable (only one cluster ID will be listed)

DAYFLOW 5
DFLOW_SD 5

I suspect this is because I have 5 days and day-level variables can vary between those days. Do you have any idea how I can resolve this?

My syntax was this:
USEVARIABLES ARE OccFlow DayFlow DayCP DFlow_sd Day Person x1mean x2mean;
CLUSTER IS Person Day;
BETWEEN = (Day)DayFlow DFlow_sd (Person) x1mean x2mean;
Missing are all (999);
DEFINE:
x1mean = Cluster_mean(DayFlow);
x2mean = Cluster_mean(DFlow_sd);
CENTER DayFlow DFlow_sd (GROUPMEAN Person);
ANALYSIS: TYPE = THREELEVEL; ESTIMATOR = ML;
MODEL:
%WITHIN%
OccFlow;
%BETWEEN Day%
OccFlow;
DayCP ON DayFlow;
DayCP ON DFlow_sd;
%BETWEEN Person%
DayCP DayFlow DFlow_sd x1mean x2mean;
OUTPUT: SAMPSTAT Tech1 Tech8 CINTERVAL;

Best wishes,
Jakob
 Linda K. Muthen posted on Wednesday, January 21, 2015 - 6:11 am
You can't put variables on the BETWEEN list if the values vary for cluster members. Be definition, all cluster members must have the same value on a variable.
 Jakob Stollberger posted on Wednesday, January 21, 2015 - 6:36 am
Thank you very much for your reply.

Could you then please explain to me how one could model a three-level longitudinal multilevel model in Mplus where you have occasions nested in days nested in persons?

Could I have two "within" lists where both are allowed to vary but are still treated as distinct levels?

Best wishes,
Jakob
 Linda K. Muthen posted on Wednesday, January 21, 2015 - 10:54 am
How the BETWEEN and WITHIN options work for TYPE = THREELEVEL are described on pages 571 and 568-69 of the user's guide.
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