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Re: Mixed Model Repeated Measures

Posted by Ryan on Oct 01, 2018; 10:02pm
URL: http://spssx-discussion.165.s1.nabble.com/Mixed-Model-Repeated-Measures-tp5726021p5736779.html

Carol:

It’s difficult to help from here but I’ll try.

1. Are the DV values consecutive whole numbers starting at zero as follows?: 0,1,2,3,4,5

2. Did you remove baseline scores from the DV when you decided to treat them as a covariate? If you did remove them, do the DV values now range from “1” to “5”?

Ryan

> On Oct 1, 2018, at 5:48 PM, parisec <[hidden email]> wrote:
>
> I think i may have figured out why the model won't run with the random
> intercept and the AR1 for the repeated parameter.
>
> My DV was measured 6 times. When i use the baseline value as the covariate,
> with the other 5 times as a repeated factor, i get the error. If i leave out
> the baseline DV, i don'tt get the error.
>
> Is it logical to think that because i'm adjusting for the baseline of the
> DV,  i no longer have random intercepts since i'm adjusting the model to
> account for these differences at baseline?
>
>
>
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