M McEwen's List: R Info and Tutorials

learnserver.csd.univie.ac.at/...doku.php RExcel R Excel

www.r-project.org/...turk.pdf R statistics teaching

www.r-project.org/...froelich.pdf R teaching undergraduate

www.statistik.uni-dortmund.de/...Rizopoulos.pdf R statistics LTM IRT Rizopoulous

stat.ethz.ch/...000331.html R statistics IRT separate calibration

www.psych.upenn.edu/...rpsych.html questionnaires R statistics IRT

www.jstatsoft.org/paper R LTM IRT statistics

www.personality-project.org/r R statistical