ltm

Analysis of multivariate dichotomous and polytomous data using latent trait models under the Item Response Theory approach. It includes the Rasch, the Two-Parameter Logistic, the Birnbaum's Three-Parameter, the Graded Response, and the Generalized Partial Credit Models.

Last 30 days

This package has been downloaded 8,538 times in the last 30 days. A solid achievement! Enough downloads to get noticed at department meetings. The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 248 times.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Last 365 days

This package has been downloaded 96,451 times in the last 365 days. The kind of number that gets mentioned in a keynote speech. Well done! The day with the most downloads was Oct 22, 2024 with 609 downloads.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.