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Qval (version 1.2.1)

get.Mmatrix: Calculate \(\mathbf{M}\) matrix

Description

Calculate \(\mathbf{M}\) matrix for stauted CDMs (de la Torre, 2011). The \(\mathbf{M}\) matrix is a matrix used to represent the interaction mechanisms between attributes.

Usage

get.Mmatrix(K = NULL, pattern = NULL)

Value

An object of class matrix.

Arguments

K

The number of attributes. Can be NULL if the argument pattern is not NULL.

pattern

The attribute mastery pattern matrix containing all possible attribute mastery pattern. Can be gained from attributepattern. Also can be NULL if K is not NULL.

Author

Haijiang Qin <Haijiang133@outlook.com>

References

de la Torre, J. (2011). The Generalized DINA Model Framework. Psychometrika, 76(2), 179-199. DOI: 10.1007/s11336-011-9207-7.

Examples

Run this code

library(Qval)

example.Mmatrix <-  get.Mmatrix(K = 3)

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