I have the following output:
Linear mixed model fit by REML Formula: Value ~ Group + (1 | Koralle) Data: dat AIC BIC logLik deviance REMLdev 5988 6008 -2990 5985 5980 Random effects: Groups Name Variance Std.Dev. Koralle (Intercept) 4.1737 2.0430 Residual 15.4811 3.9346 Number of obs: 1070, groups: Koralle, 5 Fixed effects: Estimate Std. Error t value (Intercept) 10.463 1.468 7.127 GroupTreatment -1.071 1.895 -0.565 Correlation of Fixed Effects: (Intr) GroupTrtmnt -0.775
I am not sure how to interprete the -0.775 from the Correlation of the Fixed Effects. I even don't know which correlation this is? Can someone help me?
Thanks in advance.