search for: dyadid

...yads (3 levels of nesting) by initially running a series of models to test whether the slope/intercept should be fixed or random. The problem that I am experiencing appears to arise between the random intercept, fixed slope equation AND. (syntax: rint<-lme(BDIAFTER~BDI+WEEK+CORUMTO, random=~1|DYADID/PARTICIP, data=new) summary(rint)) the random slope, random intercept model (syntax: rslint<-lme(BDIAFTER~BDI+WEEK+CORUMTO, random=~CORUMTO|DYADID/PARTICIP, data=new) summary(rslint)) at which point I obtain the exact same results for each model suggesting that one of the model is not...

I am writing to inquire about a warning message that I receive when trying to model a random slope and intercept at the second level of a 3-level model. Specifically, I am testing a 3-level model in which time (WEEK) is nested in participants (PARTICIP) and participants are nested in dyads (DYADID). The goal is to examine how an interpersonal style (CORUMTO) one week predicts changes in depression the following week (BDIAFTER) controlling for levels of depression (BDI) from the previous week. I have approximately 80 dyads and approximately 160 participants. When modeling a random slope...