var.Itempool: Calculate the variances of items in an Itempool
In irt: Item Response Theory and Computerized Adaptive Testing Functions
var,Itempool-method R Documentation
Calculate the variances of items in an Itempool
Description
var Returns the variance of each item of an
Itempool-class object for a given ability or abilities,
i.e. θ.
Usage
## S4 method for signature 'Itempool'
var(x, y = NULL, na.rm = FALSE, use)
Arguments
x
An Itempool-class object containing the item
parameters.
y
A numeric vector containing the ability parameters (i.e. theta).
na.rm
Ignored for var(Itempool, ...)
use
Ignored for var(Itempool, ...)
Value
Item variances at given theta will be returned.
Author(s)
Emre Gonulates
irt documentation built on Nov. 10, 2022, 5:50 p.m.
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| var,Itempool-method | R Documentation |
Calculate the variances of items in an Itempool
Description
var Returns the variance of each item of an
Itempool-class object for a given ability or abilities,
i.e. θ.
Usage
## S4 method for signature 'Itempool' var(x, y = NULL, na.rm = FALSE, use)
Arguments
x |
An |
y |
A numeric vector containing the ability parameters (i.e. theta). |
na.rm |
Ignored for |
use |
Ignored for |
Value
Item variances at given theta will be returned.
Author(s)
Emre Gonulates
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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