sample.ipar: Sample item parameters
In MAT: Multidimensional Adaptive Testing
sample.ipar R Documentation
Sample item parameters
Description
A sample item parameter file containing 180 Multidimensional 3-PL (M3PL) model.
Usage
data(sample.ipar)
Format
A data frame with item parameters for 180 items.
a1the discrimination parameter for theta 1
a2the discrimination parameter for theta 2
a3the discrimination parameter for theta 3
dthe easiness parameter, d=-a*b
cthe guessing parameter
Details
First 60 items are primarily loaded on theta 1, second 60 on theta 2, and last 60 on theta 3.
Examples
data(sample.ipar)
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| sample.ipar | R Documentation |
Sample item parameters
Description
A sample item parameter file containing 180 Multidimensional 3-PL (M3PL) model.
Usage
data(sample.ipar)Format
A data frame with item parameters for 180 items.
a1the discrimination parameter for theta 1
a2the discrimination parameter for theta 2
a3the discrimination parameter for theta 3
dthe easiness parameter, d=-a*b
cthe guessing parameter
Details
First 60 items are primarily loaded on theta 1, second 60 on theta 2, and last 60 on theta 3.
Examples
data(sample.ipar)
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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