Interactively building test forms from an IRT perspective: An application of R and Shiny Brandon LeBeau University of Iowa Overview R R is an open source statistical programming language. Pros: Common statistical procedures...

Web Scraping to Item Response Theory: A College Football Adventure Brandon LeBeau, Andrew Zieffler, and Kyle Nickodem University of Iowa & University of Minnesota Background Began after Tim Brewster was fired Wanted to try to predict next great coach Data Available Data is available at three levels Coach Game by Game Team Coach Data Overall record Team history Not Available Coordinator history Example Coach Data ## Year...

I have a simulation package that allows for the simulation of regression models including nested data structures. You can see the package on github here: simReg. Over the weekend I updated the package to allow for the simulation of unbalanced designs. ...

I have a simulation package that allows for the simulation of regression models including nested data structures. You can see the package on github here: simReg. Over the weekend I updated the package to allow for the simulation of unbalanced designs. ...

I'd like to introduce a package that simulates regression models. This includes both single level and multilevel (i.e. hierarchical or linear mixed) models up to two levels of nesting. The package produces a unified framework to simulate all types of c...

I'd like to introduce a package that simulates regression models. This includes both single level and multilevel (i.e. hierarchical or linear mixed) models up to two levels of nesting. The package produces a unified framework to simulate all types of c...

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