what are outliers in the growth curve how do you know when an outlier is present in latent growth curves? how to analyze growth mixture with outliers what is growth mixture testing how to find potential growth outliers what is the problem with a growing mixture model? why are outliers present in growth mixtures how to deal with natural outliers what is the significance of an LRT test? what kind of model is gmm why are latent growth curves difficult to use how to exclude outliers in a growth mixture model why do outliers in growth mixtures why is lrt difficult how to exclude outliers from growth mixtures what statistical testing to do when there are outliers how does lrt statistical tests work how to test lrt for growth mixture what is the difference between growth mixture and latent growth curve? what is lrt significance test for k-1