# Tagged Questions

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12 views

### Is there a method for testing follow-up individual factor and item invariance using the lava an or semTools packages in R?

I've found the "measurementInvariance" command from the semTools package EXTREMELY helpful recently, but now I am wondering if there is a way to conduct follow-up factor-level and item-level ...
18 views

### Not specifying the main effect of a term that is part of a tensor product interaction

Say you've got a model $$y = f(X_1,X_2)+\epsilon$$ and you're OK with linear (or other parametric) functional forms. Say you think that the effect of $X_1$ on $y$ depends on $X_2$. The standard ...
97 views

### Showing $\mathbb{E}[T_n] = \theta \mathbb{E}_1[T_n]$ is scale equivariant?

This is question 5 is from Staudte and Sheather (1990), Robust estimation and testing. Let $X_1,\ldots , X_n$ be i.i.d with $$F_\theta = F(\frac{x}{\theta}),\quad x>0;\theta>0.$$ Assume that ...
48 views

### Scaling of huge data and estimating the distribution

Suppose you have some sample of huge numbers and you want to fit some continuous distribution to these numbers. You will get some distribution that is loosely speaking highly "smeared", e.g. it has a ...
167 views

### Correlate heuristic metrics with future true performance

I am faced with a problem, that I'm pretty sure is a statistical one, but me taking 1 course in probability followed by 1 course in statistics back in university did not prepare me to adequately face ...
546 views

### Choice of weight function in Moran's I

I'm doing an autocorrelation analysis for a spatially distributed collection of observations. To perform my analysis, I am using Moran's I statistic. My questions are: (1) What are the implications ...