TDCM

Estimate the transition diagnostic classification model (TDCM) described in Madison & Bradshaw (2018) doi:10.1007/s11336-018-9638-5, a longitudinal extension of the log-linear cognitive diagnosis model (LCDM) in Henson, Templin & Willse (2009) doi:10.1007/s11336-008-9089-5. As the LCDM subsumes many other diagnostic classification models (DCMs), many other DCMs can be estimated longitudinally via the TDCM. The 'TDCM' package includes functions to estimate the single-group and multigroup TDCM, summarize results of interest including item parameters, growth proportions, transition probabilities, transitional reliability, attribute correlations, model fit, and growth plots.