cat_clps: A recommendation for category collapsing of items based on...
In IRTest: Parameter Estimation of Item Response Theory with Estimation of Latent Distribution
View source: R/category_collapsing.R
cat_clps R Documentation
A recommendation for category collapsing of items based on item parameters
Description
In a polytomous item, one or more score categories may not have the highest probability among the categories in an acceptable \theta range.
In this case, the category may possibly be regarded as redundant in a psychometric point of view and can be collapsed into another score category.
This function returns a recommendation for a recategorization scheme based on item parameters.
Usage
cat_clps(item.matrix, range = c(-4, 4), increment = 0.005)
Arguments
item.matrix
A matrix of item parameters.
range
A range of \theta to be evaluated. The default is c(-4, 4).
increment
A width of the grid scheme. The default is 0.005.
Value
A list of recommended recategorization for each item.
Author(s)
Seewoo Li cu@yonsei.ac.kr
IRTest documentation built on Oct. 4, 2024, 5:11 p.m.
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.
View source: R/category_collapsing.R
| cat_clps | R Documentation |
A recommendation for category collapsing of items based on item parameters
Description
In a polytomous item, one or more score categories may not have the highest probability among the categories in an acceptable \theta range.
In this case, the category may possibly be regarded as redundant in a psychometric point of view and can be collapsed into another score category.
This function returns a recommendation for a recategorization scheme based on item parameters.
Usage
cat_clps(item.matrix, range = c(-4, 4), increment = 0.005)
Arguments
item.matrix |
A matrix of item parameters. |
range |
A range of |
increment |
A width of the grid scheme. The default is |
Value
A list of recommended recategorization for each item.
Author(s)
Seewoo Li cu@yonsei.ac.kr
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.
Embedding an R snippet on your website
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.