IRT Programs

This page contains R programs written by Melanie Wall. Please reference this website if you use them.
Comments/improvements welcome - contact mmwall@columbia.edu

R functions for calculating a confindence interval for the Total Information Area Index (TIA)
- Poster presented at the Joint Statistical Meetings 2011 in Miami describing the TIA with an application to nicotine use disorder.
- R-program-Using model based asymptotic standard errors for the confidence interval
- R-program-Using a bootstrapped confidence interval-computationally demanding

Back to my homepage