Piecewise function on mlwin

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Katekeri
Posts: 4
Joined: Thu May 30, 2024 3:39 pm

Piecewise function on mlwin

Post by Katekeri »

Hi all,

I am trying to fit a piecewise multilevel model on mlwin where there are four measurements taken during a treatment study. 3 measurements (baseline, mid-treatment and end of treatment) are taken during the treatment phase and one measurement during follow up. I am interested in assessing the effect of treatment (treatment group by time interaction) at the end of treatment and at follow-up. In this case, is it correct to specify the first time piece as 0, 0.5, 1, 1 and the second time piece as 0, 0, 0, 1?

Thanks a lot for your help.
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