Q.improper: Generation of a Q-matrix with improper MC items that are not...
In NPCDTools: The Nonparametric Classification Methods for Cognitive Diagnosis
Q.improper R Documentation
Generation of a Q-matrix with improper MC items that are not proper based on a 'plausible and proper' Q
Description
This function turns a proper and plausible Q-matrix into an improper Q-matrix with the user-specified
number of improper distractors.
Usage
Q.improper(Q, n.improper)
Arguments
Q
A proper and plausible Q-matrix for MC items.
n.improper
The number of improper distractors.
Value
The function returns
- Q.improper
The improper Q-matrix generated from Q
- item.improper
The ID of the items that are improper.
References
Chiu, C.-Y., Köhn, H. F. & Wang, Y. (Online first). Plausible and proper multiple-choice items
for diagnostic classification. Psychometrika.
\Sexpr[results=rd]{tools:::Rd_expr_doi("10.1017/psy.2025.10074")}
NPCDTools documentation built on Sept. 1, 2026, 1:08 a.m.
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| Q.improper | R Documentation |
Generation of a Q-matrix with improper MC items that are not proper based on a 'plausible and proper' Q
Description
This function turns a proper and plausible Q-matrix into an improper Q-matrix with the user-specified number of improper distractors.
Usage
Q.improper(Q, n.improper)
Arguments
Q |
A proper and plausible Q-matrix for MC items. |
n.improper |
The number of improper distractors. |
Value
The function returns
- Q.improper
The improper Q-matrix generated from Q
- item.improper
The ID of the items that are improper.
References
Chiu, C.-Y., Köhn, H. F. & Wang, Y. (Online first). Plausible and proper multiple-choice items for diagnostic classification. Psychometrika. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1017/psy.2025.10074")}
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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