Re: Plotting categorical by continuous interactions from a mixed linear model

Posted by mariskakret on Nov 06, 2012; 12:37pm
URL: http://spssx-discussion.165.s1.nabble.com/Plotting-categorical-by-continuous-interactions-from-a-mixed-linear-model-tp5520187p5716053.html

Hi,


I would like to plot a three-way interaction from a mixed linear model with multiple levels (subjects and each participant has multiple trials per condition).

I have:
-one between subject variable (group: treatment and placebo group)
-one within subject variable with three categories called 'face type'
-one continous centred variable (questionnaire score)

The dependent variable is a 5-point scale which is treated as continuous.

Ideally, I want to make two plots of the interaction between group * face type where the continuous variable is fixed once at minus 1 standard deviation and once at plus 1 standard deviation.

How can I achieve this?



best wishes,
Mariska
PS I know the SPSS command for the generalized linear mixed model for it, but not for the general linear mixed model.

This works for generalized:
 /EMMEANS_OPTIONS  CONTROL=  continuousvar (-0.2)  SCALE=ORIGINAL PADJUST=LSD. (here 0.2 is the standard deviation)