Outliers are a nasty problem for both ANOVA or regression analyses, though at least some folks consider them more of a problem for the latter type of analysis. So, I thought I post some of my thought… more →
HLP/Jaeger lab blogwrote 2 weeks ago: Outliers are a nasty problem for both ANOVA or regression analyses, though at least some folks cons … more →
wrote 2 weeks ago: Below, I’ve posted some code that generates an artificial data set creates both treatment (a.k … more →
wrote 4 months ago: What to do when you need an intuitive measure of model quality for your logit (logistic) model? The … more →
wrote 7 months ago: I am always annoyed that one has to remind R to reduce the number of levels of a factor after a subs … more →
wrote 7 months ago: One of the more common questions I get about mixed models is whether there are any standards regardi … more →
wrote 8 months ago: This post is partly a response to this message. The author of that question is working on ordered ca … more →
wrote 8 months ago: One of the most common issues in regression analyses of even balanced experimental data is collinear … more →
wrote 8 months ago: Since I get asked for the R code I promised in my 2008 JML paper on mixed logit models every now and … more →
wrote 11 months ago: Ah, while I am at, I may as well put this plot up, too. The code needs to be updated, but let me kno … more →
wrote 1 year ago: I’ve been using a two-step approach, where in the first step I use all data (including fillers … more →
wrote 1 year ago: Some time ago I posted some R-code on how to create spill-over data from a linger reading time file … more →
wrote 2 years ago: If you’re interested in getting an intro to ordinary logistic regression and mixed logit model … more →
wrote 2 years ago: Here is some code to summarize the coefficients of a linear mixed model that produces nice graphs li … more →
wrote 2 years ago: I’ve been working on some R-code for spill-over analysis for self-paced reading experiments. I … more →