irt.itemstructure: IRT Structure File Creation
In m070ch/ips.tools: Tools for IPS
Description
Usage
Arguments
Details
Value
See Also
Examples
View source: R/irt_calibration.R
Description
Creates and Formats Item Structures for IRT Calibration.
Usage
1
irt.itemstructure(items, anchors, write, form)
Arguments
items
The list of items to calibrate in IRT calibration names, see irt.createdata)
anchors
A table of Anchor Items (see imports.anchors)
write
boolean (default = FALSE)- write to .txt file for Winsteps use
form
The form code (only necessary if write = TRUE)
Details
Takes a list of items being calibrated (using the concatenated
item name from irt.createdata), and a table of anchor items
(see imports.anchors).
Merges the two and outputs a list of anchor items-
they must be scored on the form, and have an IRT_b value present in
the anchor download.
Value
An item structure table
See Also
Other IRT Calibration: irt.cleanupresults,
irt.controlcard,
irt.createdata,
irt.itemanchor,
irt.itemweight,
irt.personweight
Examples
1
irt.itemweight(ResponseImport, AnchorImport, 1, TRUE)
m070ch/ips.tools documentation built on Jan. 14, 2018, 12:16 p.m.
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Description Usage Arguments Details Value See Also Examples
View source: R/irt_calibration.R
Description
Creates and Formats Item Structures for IRT Calibration.
Usage
1 | irt.itemstructure(items, anchors, write, form)
|
Arguments
items |
The list of items to calibrate in IRT calibration names, see irt.createdata) |
anchors |
A table of Anchor Items (see imports.anchors) |
write |
boolean (default = FALSE)- write to .txt file for Winsteps use |
form |
The form code (only necessary if write = TRUE) |
Details
Takes a list of items being calibrated (using the concatenated item name from irt.createdata), and a table of anchor items (see imports.anchors). Merges the two and outputs a list of anchor items- they must be scored on the form, and have an IRT_b value present in the anchor download.
Value
An item structure table
See Also
Other IRT Calibration: irt.cleanupresults,
irt.controlcard,
irt.createdata,
irt.itemanchor,
irt.itemweight,
irt.personweight
Examples
1 | irt.itemweight(ResponseImport, AnchorImport, 1, TRUE)
|
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.
As an Amazon Associate I earn from qualifying purchases.
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