I am doing a two level SEM model study. The input data is a covariance matrix. I didn't find the example for this kind of input. So I am not quite sure how to set up the sample size. Are there two sample sizes that one is for group size, the other one is for individual size? Or, is only one sample size needed which indicates the average sample size?
Hello, I'm trying to apply a 2-level regression analysis with about n=200 students in k=9 classes. I'm only interested in effects on level 1. From reading papers by Hox and Maas, I had got the impression that the small number of classes does not seriously affect the estimated parameters on level 1. Is that true? In other words, would a random intercept model that considers only level-1 predictors be reasonable for my dataset? Thank you!