# Sacha Epskamp

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bio website sachaepskamp.com location Amsterdam, The Netherlands age 28 member for 2 years, 10 months seen Dec 2 at 14:45 profile views 56

I am a graduate student and research assistant in psychological methods at the University of Amsterdam. I am mainly developping the R-package qgraph:

 Mar31 answered How do you draw structural equation/MPLUS models? Mar8 comment Is there a test in R whose null hypothesis is that there is a difference between the means of two populations? Here are a few references: ejwagenmakers.com/2009/WetzelsEtAl2009Ttest.pdf, ejwagenmakers.com/2010/WagenmakersEtAlCogPsy2010.pdf Mar8 answered Is there a test in R whose null hypothesis is that there is a difference between the means of two populations? Feb7 awarded Yearling Jan24 awarded Nice Question Dec21 comment Fitting to data with a Bernoulli (I think) distribution Wouldn't $y$ have the distribution ${n \choose k} \theta^y (1 - \theta)^{n-y}$ if $y = \sum_{i=1}^n x_i$ Dec21 answered Fitting to data with a Bernoulli (I think) distribution Aug13 comment How to test hypothesis that correlation is equal to given value using R? The question "is there a function to compute the p-value for cor=0.75?" has nothing to do with programming. It is a statistical question. Aug13 comment How to test hypothesis that correlation is equal to given value using R? This question is better suited for crossvalidated.com Jun7 awarded Commentator Jun7 comment Which measure of model fit to report when performing likelihood based regression: AIC, BIC, Pseudo R-square? Probably depends heavily on the field and journal you are interested in. Jun7 awarded Scholar Jun7 accepted R only alternatives to BUGS Jun6 asked R only alternatives to BUGS Jun6 comment Is there an R package with a pretty function that can deal effectively with outliers? or mark them as NA: foo[foo == 999999999] <- NA May31 comment Internet statistics resources suitable for psychology students doing research Very nice, thanks May31 comment Internet statistics resources suitable for psychology students doing research Thanks, wanted to make it CW myself but don't have enough rep yet here:) May31 comment Internet statistics resources suitable for psychology students doing research Mainly students doing their research projects. May31 asked Internet statistics resources suitable for psychology students doing research May30 awarded Student