[R-sig-ME] cumulative Z-structure

[Peter Paprzycki]

In longitudinal, repeated-measure intervention research, the authors of
HLM 6.03 software recommend using a so called cumulative Z-structure to
reflect the carry-overs of intervention effects from one measurement
occasion to another. Is there an equivalent of this structure with the use
of the lme function? The data set up is annual observations nested in
students crossed by teachers and schools with intervention on and off
between years.



I appreciate guidance. Thank you.

Peter

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[Ben Bolker]

Can you say a little more about how the cumulative Z-structure is
defined? I can see that it's defined on p. 390 of Raudenbush's HLM 6
book, but I can't get to that page on Google Books to see how it's
actually specified ...
On Sun, Jul 22, 2018 at 10:51 AM Peter Paprzycki

Post by Peter Paprzycki
In longitudinal, repeated-measure intervention research, the authors of
HLM 6.03 software recommend using a so called cumulative Z-structure to
reflect the carry-overs of intervention effects from one measurement
occasion to another. Is there an equivalent of this structure with the use
of the lme function? The data set up is annual observations nested in
students crossed by teachers and schools with intervention on and off
between years.
I appreciate guidance. Thank you.
Peter
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