Posted by
parisec on
URL: http://spssx-discussion.165.s1.nabble.com/Mixed-Model-Repeated-Measures-tp5726021p5736792.html
Ryan Black wrote
> 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
>
> Yes. They were taken at baseline (0) and years 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”?
>
> Yes. When i created the DV using the values from years 1 through 5 and
> kept 0 as the covariate.
>
>
> Ryan
>
>> On Oct 1, 2018, at 5:48 PM, parisec <
> PariseC@
> > 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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