I analyzed parallel GGMM with 2 covariates and achieved a 4-class solution.
In order to demonstrate 2 growth patterns for each of 4 classes on the same graph, I calculated expected values for 5 time points using the means of intercepts and slopes for each class and plotted them on the same graph.
As a result, I ended up having 8 linear lines on the graph, 2 for each class.
In this case, how shoud I name and interpret the Y-axis? And is it possible to draw 2 growth patterns on the same graph? Since 2 growths came from different measures, I was wondering if I have to draw 2 different graphs.