TreeBUGS

User-friendly analysis of hierarchical multinomial processing tree (MPT) models that are often used in cognitive psychology. Implements the latent-trait MPT approach (Klauer, 2010) doi:10.1007/s11336-009-9141-0 and the beta-MPT approach (Smith & Batchelder, 2010) doi:10.1016/j.jmp.2009.06.007 to model heterogeneity of participants. MPT models are conveniently specified by an .eqn-file as used by other MPT software and data are provided by a .csv-file or directly in R. Models are either fitted by calling JAGS or by an MPT-tailored Gibbs sampler in C++ (only for nonhierarchical and beta MPT models). Provides tests of heterogeneity and MPT-tailored summaries and plotting functions. A detailed documentation is available in Heck, Arnold, & Arnold (2018) doi:10.3758/s13428-017-0869-7 and a tutorial on MPT modeling can be found in Schmidt, Erdfelder, & Heck (2022) doi:10.31234/osf.io/gh8md.

Last 30 days

This package has been downloaded 380 times in the last 30 days. More than a random curiosity, but not quite a blockbuster. Still, it's gaining traction! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 12 times.

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Last 365 days

This package has been downloaded 5,905 times in the last 365 days. A solid achievement! Enough downloads to get noticed at department meetings. The day with the most downloads was Apr 10, 2024 with 85 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.