Description Usage Arguments Author(s) References See Also Examples
Expands a wide-form matrix of item responses based on an item response tree structure
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mat |
an integer matrix of IRT responses (columns represent items, rows represent respondents) |
cmx |
a mapping matrix with as many rows as there are response options for the items |
missing |
for a long-form data, the data lines with a missing item response are removed |
wide |
If |
Minjeong Jeon <jeon.117@osu.edu>
De Boeck, P. and Partchev, I. (2012). IRTrees: Tree-Based Item Response Models of the GLMM Family, Journal of Statistical Software 48, 1-8.
Jeon, M. and De Boeck, P. (2015). A generalized item response tree model for psychological assessments. Under revision.
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