The Q-Matrix Validation Methods Framework

---

Documentation for package ‘Qval’ version 1.2.0

• DESCRIPTION file.
• Package NEWS.

Help Pages

CDM	Parameter estimation for cognitive diagnosis models (CDMs) by MMLE/EM or MMLE/BM algorithm.
extract	Extract elements from objects of various classes
extract.CDM	Extract elements from objects of various classes
extract.sim.data	Extract elements from objects of various classes
extract.validation	Extract elements from objects of various classes
fit	Calculate fit indeces
get.beta	Calculate beta
get.Mmatrix	Calculate \mathbf{M} matrix
get.priority	Priority of Attribute
get.PVAF	Calculate PVAF
get.R2	Calculate McFadden pseudo-R2
get.Rmatrix	Restriction matrix
parallel_iter	A tool for the beta Method
plot.validation	Hull Plot
print.CDM	Print Method for CDM Objects
print.sim.data	Print Method for sim.data Objects
print.validation	Print Method for Validation Objects
sim.data	generate response
sim.MQ	Simulate mis-specifications in the Q-matrix
sim.Q	generate a random Q-matrix
validation	Perform Q-matrix validation methods
Wald.test	the Wald test for two q-vectors
zOSR	Calculate over-specifcation rate (OSR)
zQRR	Calculate Q-matrix recovery rate (QRR)
zTNR	Calculate true-negative rate (TNR)
zTPR	Calculate true-positive rate (TPR)
zUSR	Calculate under-specifcation rate (USR)
zVRR	Calculate vector recovery ratio (VRR)