Anova xtmixed

I thought “change over time”. So, my first question is “Do current differences in PREDICTOR predict the slope of DV (. Does motivation in any time-point predict subsequent increase in school-grades?). (note: I have 5 time-points in accelerated design) My second question is “Is change (over time) in PREDICTOR related to change (over time) in DV (eg. Does increase in motivation predict increase in school-grades above the “static” prediction of change in school grades from current motivation?)
Is it possible to distinguish these two questions with time-variant predictors? I have hundreds of literature pages on MLM, but I never found SPSS syntax sample on this issue – I would really appreciate if you can help me.
Thank you in advance,
Irma

Anova xtmixed

anova xtmixed

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