fisherTestInfo | R Documentation |
Calculates the total information gained for a respondent for all answered items, conditioned on \theta
.
fisherTestInfo(catObj, theta)
catObj |
An object of class |
theta |
A numeric indicating the position on the latent trait. |
The function fisherTestInfo
returns a numeric indicating the total information gained for a respondent,
given a specific answer set and the current estimate of \theta
.
This function is to allow users to access the internal functions of the package. During item selection, all calculations are done in compiled C++
code.
Haley Acevedo, Ryden Butler, Josh W. Cutler, Matt Malis, Jacob M. Montgomery, Tom Wilkinson, Erin Rossiter, Min Hee Seo, Alex Weil
fisherInf
## Loading ltm Cat object
data(ltm_cat)
## Store example answers
setAnswers(ltm_cat) <- c(1,0,1,0,1, rep(NA, 35))
## Fisher's test information for answer profile
fisherTestInfo(ltm_cat, theta = 2)
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